{"id":6455,"date":"2018-05-27T16:12:53","date_gmt":"2018-05-27T13:12:53","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=6455"},"modified":"2018-05-27T16:12:53","modified_gmt":"2018-05-27T13:12:53","slug":"3%ce%bf-%ce%ba%cf%81%ce%b9%cf%84%ce%ae%cf%81%ce%b9%ce%bf-online-%ce%b1-%ce%bb%cf%85%ce%ba%ce%b5%ce%af%ce%bf%cf%85","status":"publish","type":"post","link":"https:\/\/viewonphysics.gr\/?p=6455","title":{"rendered":"3\u03bf \u039a\u03c1\u03b9\u03c4\u03ae\u03c1\u03b9\u03bf Online \u0391 \u039b\u03c5\u03ba\u03b5\u03af\u03bf\u03c5"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam37\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-37\"><p>\u03a3<em>\u03c4\u03b9\u03c2 20 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c0\u03b1\u03af\u03c1\u03bd\u03b5\u03b9\u03c2 g=10m\/s<sup>2<\/sup>.<\/em><\/p>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-37\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-441'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>\u039a\u03b9\u03bd\u03b7\u03c4\u03cc \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391 \u03ba\u03b1\u03b9 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03b5\u03af \u03c4\u03c1\u03bf\u03c7\u03b9\u03ac \u0391(-5m)\u2192\u0392(8m)\u2192\u039f(0m)\u2192\u0393(4m). \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2;<br \/>\r\n<br \/>\r\n<div id=\"attachment_6458\" style=\"width: 448px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6458\" class=\" wp-image-6458\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/image-1-300x95.jpeg\" alt=\"\" width=\"438\" height=\"139\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/image-1-300x95.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/image-1-768x244.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/image-1-1024x326.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/image-1.jpeg 1383w\" sizes=\"auto, (max-width: 438px) 100vw, 438px\" \/><p id=\"caption-attachment-6458\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 1<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_1' value='441' \/><input type='hidden' id='answerType441' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-441[]' id='answer-id-1368' class='answer   answerof-441 watupro_max_selections-2' value='1368'  onclick='return WatuPRO.maxSelections(441,2, this);' \/><label for='answer-id-1368' id='answer-label-1368' class=' answer'><span>\u0397 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391 \u03c3\u03c4\u03bf B \u03b5\u03af\u03bd\u03b1\u03b9 3m.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-441[]' id='answer-id-1369' class='answer   answerof-441 watupro_max_selections-2' value='1369'  onclick='return WatuPRO.maxSelections(441,2, this);' \/><label for='answer-id-1369' id='answer-label-1369' class=' answer'><span>\u03a4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03bd\u03cd\u03b5\u03b9 \u03c4\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 25m.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-441[]' id='answer-id-1370' class='answer   answerof-441 watupro_max_selections-2' value='1370'  onclick='return WatuPRO.maxSelections(441,2, this);' \/><label for='answer-id-1370' id='answer-label-1370' class=' answer'><span>\u03a4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03c4\u03b1\u03c5\u03c4\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-441[]' id='answer-id-1371' class='answer   answerof-441 watupro_max_selections-2' value='1371'  onclick='return WatuPRO.maxSelections(441,2, this);' \/><label for='answer-id-1371' id='answer-label-1371' class=' answer'><span>\u0397 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 9m.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-442'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>\u039f\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03bf\u03c5 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5 \u03c3\u03b5 \u03c7\u03c1\u03cc\u03bd\u03bf 50min, \u03b1\u03bd \u03b7 \u03bc\u03ad\u03c3\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 72km\/h. \u038c\u03bc\u03c9\u03c2 \u03bb\u03cc\u03b3\u03c9 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b2\u03c1\u03ae\u03ba\u03b5 \u03c3\u03c4\u03bf \u03b4\u03c1\u03cc\u03bc\u03bf \u03ad\u03c6\u03c4\u03b1\u03c3\u03b5 \u03bc\u03b5 \u03ba\u03b1\u03b8\u03c5\u03c3\u03c4\u03ad\u03c1\u03b7\u03c3\u03b7 10min. \u0397 \u03bc\u03ad\u03c3\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03af\u03c7\u03b5 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03ae\u03c4\u03b1\u03bd:<\/div><input type='hidden' name='question_id[]' id='qID_2' value='442' \/><input type='hidden' id='answerType442' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-442[]' id='answer-id-1372' class='answer   answerof-442 ' value='1372'   \/><label for='answer-id-1372' id='answer-label-1372' class=' answer'><span>90km\/h<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-442[]' id='answer-id-1373' class='answer   answerof-442 ' value='1373'   \/><label for='answer-id-1373' id='answer-label-1373' class=' answer'><span>72km\/h<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-442[]' id='answer-id-1374' class='answer   answerof-442 ' value='1374'   \/><label for='answer-id-1374' id='answer-label-1374' class=' answer'><span>60km\/h<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-442[]' id='answer-id-1375' class='answer   answerof-442 ' value='1375'   \/><label for='answer-id-1375' id='answer-label-1375' class=' answer'><span>48km\/h<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-444'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>\u039a\u03b9\u03bd\u03b7\u03c4\u03cc \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b1, \u03b4\u03b9\u03b1\u03bd\u03cd\u03b5\u03b9 \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 s \u03c3\u03b5 \u03c7\u03c1\u03cc\u03bd\u03bf t. \u0391\u03bd \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03b1\u03c5\u03c4\u03cc \u03bd\u03b1 \u03c4\u03bf \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03c7\u03c1\u03cc\u03bd\u03bf t\/2 \u03c4\u03cc\u03c4\u03b5 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7:<\/div><input type='hidden' name='question_id[]' id='qID_3' value='444' \/><input type='hidden' id='answerType444' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-444[]' id='answer-id-1380' class='answer   answerof-444 ' value='1380'   \/><label for='answer-id-1380' id='answer-label-1380' class=' answer'><span>\u03b1\/2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-444[]' id='answer-id-1381' class='answer   answerof-444 ' value='1381'   \/><label for='answer-id-1381' id='answer-label-1381' class=' answer'><span>2\u03b1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-444[]' id='answer-id-1382' class='answer   answerof-444 ' value='1382'   \/><label for='answer-id-1382' id='answer-label-1382' class=' answer'><span>3\u03b1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-444[]' id='answer-id-1383' class='answer   answerof-444 ' value='1383'   \/><label for='answer-id-1383' id='answer-label-1383' class=' answer'><span>4\u03b1<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-443'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>\u039c\u03bf\u03c4\u03bf\u03c3\u03c5\u03ba\u03bb\u03b5\u03c4\u03b9\u03c3\u03c4\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03bf\u03c7\u03b1\u03af\u03b1\u03c2 \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b4\u03b9\u03ce\u03ba\u03b5\u03b9 \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03bc\u03c0\u03c1\u03bf\u03c3\u03c4\u03ac \u03c4\u03bf\u03c5 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 108km\/h. \u039f \u03bc\u03bf\u03c4\u03bf\u03c3\u03c5\u03ba\u03bb\u03b5\u03c4\u03b9\u03c3\u03c4\u03ae\u03c2 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 8m\/s, \u03b5\u03bd\u03ce \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03b4\u03c5\u03bd\u03c3\u03b7 2m\/s<sup>2<\/sup>. \u039f \u03bc\u03bf\u03c4\u03bf\u03c3\u03c5\u03ba\u03bb\u03b5\u03c4\u03b9\u03c3\u03c4\u03ae\u03c2 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c3\u03b5 \u03c7\u03c1\u03cc\u03bd\u03bf:<\/div><input type='hidden' name='question_id[]' id='qID_4' value='443' \/><input type='hidden' id='answerType443' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-443[]' id='answer-id-1376' class='answer   answerof-443 ' value='1376'   \/><label for='answer-id-1376' id='answer-label-1376' class=' answer'><span>2s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-443[]' id='answer-id-1377' class='answer   answerof-443 ' value='1377'   \/><label for='answer-id-1377' id='answer-label-1377' class=' answer'><span>5s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-443[]' id='answer-id-1378' class='answer   answerof-443 ' value='1378'   \/><label for='answer-id-1378' id='answer-label-1378' class=' answer'><span>6s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-443[]' id='answer-id-1379' class='answer   answerof-443 ' value='1379'   \/><label for='answer-id-1379' id='answer-label-1379' class=' answer'><span>8s<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-445'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>\u039f\u03b9 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b4\u03cd\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03ce\u03bd \u0391 \u03ba\u03b1\u03b9 \u0392, \u03c0\u03bf\u03c5 \u03be\u03b5\u03ba\u03b9\u03bd\u03bf\u03cd\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b8\u03ad\u03c3\u03b7, \u03bc\u03b5\u03c4\u03b1\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf, \u03cc\u03c0\u03c9\u03c2 \u03c6\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2;<br \/>\r\n<br \/>\r\n<div id=\"attachment_6459\" style=\"width: 346px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6459\" class=\" wp-image-6459\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-1-300x236.jpg\" alt=\"\" width=\"336\" height=\"264\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-1-300x236.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-1.jpg 705w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><p id=\"caption-attachment-6459\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 5<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_5' value='445' \/><input type='hidden' id='answerType445' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-445[]' id='answer-id-1384' class='answer   answerof-445 watupro_max_selections-2' value='1384'  onclick='return WatuPRO.maxSelections(445,2, this);' \/><label for='answer-id-1384' id='answer-label-1384' class=' answer'><span>\u03a3\u03c4\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b1 3s \u03c4\u03bf \u0392 \u03ad\u03c7\u03b5\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-445[]' id='answer-id-1385' class='answer   answerof-445 watupro_max_selections-2' value='1385'  onclick='return WatuPRO.maxSelections(445,2, this);' \/><label for='answer-id-1385' id='answer-label-1385' class=' answer'><span>\u03a4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 9s \u03c4\u03b1 \u03ba\u03b9\u03bd\u03b7\u03c4\u03ac \u03c3\u03c5\u03bd\u03b1\u03bd\u03c4\u03b9\u03ce\u03bd\u03c4\u03b1\u03b9.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-445[]' id='answer-id-1386' class='answer   answerof-445 watupro_max_selections-2' value='1386'  onclick='return WatuPRO.maxSelections(445,2, this);' \/><label for='answer-id-1386' id='answer-label-1386' class=' answer'><span>\u039c\u03b5\u03c4\u03ac \u03c4\u03b1 3s \u03c4\u03bf \u0391 \u03c0\u03c1\u03bf\u03b7\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03bf\u03c5 \u0392.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-445[]' id='answer-id-1387' class='answer   answerof-445 watupro_max_selections-2' value='1387'  onclick='return WatuPRO.maxSelections(445,2, this);' \/><label for='answer-id-1387' id='answer-label-1387' class=' answer'><span>\u03a4\u03bf \u0392 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03b8\u03b1 \u03c0\u03c1\u03bf\u03b7\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-446'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>\u03a3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 20kg \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 \u03c4\u03c9\u03bd x \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03c6\u03bf\u03c1\u03ac. \u03a4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae t<sub>0<\/sub>=0s \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u039f \u03c4\u03bf\u03c5 \u03ac\u03be\u03bf\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 20m\/s \u03ba\u03b1\u03b9 \u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F=80N \u03bc\u03b5 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2. \u0386\u03bd\u03bf\u03b9\u03be\u03b5 \u03c4\u03b9\u03c2 \u03ba\u03ac\u03c1\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03b5\u03b9\u03c2 \u03cc\u03c4\u03b9 \u03b1\u03c0\u03b1\u03bd\u03c4\u03bf\u03cd\u03bd \u03c3\u03c9\u03c3\u03c4\u03ac. \u03a4\u03b9\u03c2 \u03c5\u03c0\u03cc\u03bb\u03bf\u03b9\u03c0\u03b5\u03c2 \u03ac\u03c6\u03b7\u03c3\u03ad \u03c4\u03b5\u03c2 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03ad\u03c2.<\/div><input type='hidden' name='question_id[]' id='qID_6' value='446' \/><input type='hidden' id='answerType446' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div id='watuproFlashcard-1388' onclick=\"WatuPROFlipCard('1388');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u03a4\u03b7 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 10s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u03a0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u039f \u03c4\u03bf\u03c5 \u03ac\u03be\u03bf\u03bd\u03b1<\/div><\/div><div id='watuproFlashcard-1389' onclick=\"WatuPROFlipCard('1389');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u03a3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 100m<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0391\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/div><\/div><div id='watuproFlashcard-1390' onclick=\"WatuPROFlipCard('1390');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u03a3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 -20m<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9<\/div><\/div><div id='watuproFlashcard-1391' onclick=\"WatuPROFlipCard('1391');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u03a4\u03b7 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 2,5s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0397 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bc\u03b9\u03c3\u03cc<\/div><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-446[]' id='answer-id-1388' class='answer   answerof-446 ' value='1388'   \/><label for='answer-id-1388' id='answer-label-1388' class=' answer'><span>\u03a4\u03b7 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 10s=\u03a0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u039f \u03c4\u03bf\u03c5 \u03ac\u03be\u03bf\u03bd\u03b1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-446[]' id='answer-id-1389' class='answer   answerof-446 ' value='1389'   \/><label for='answer-id-1389' id='answer-label-1389' class=' answer'><span>\u03a3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 100m=\u0391\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-446[]' id='answer-id-1390' class='answer   answerof-446 ' value='1390'   \/><label for='answer-id-1390' id='answer-label-1390' class=' answer'><span>\u03a3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 -20m=\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-446[]' id='answer-id-1391' class='answer   answerof-446 ' value='1391'   \/><label for='answer-id-1391' id='answer-label-1391' class=' answer'><span>\u03a4\u03b7 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 2,5s=\u0397 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bc\u03b9\u03c3\u03cc<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-447'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>\u03a3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 40kg \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03bb\u03b5\u03af\u03bf \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 15m\/s \u03b1\u03c6\u03bf\u03cd \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03b5\u03b9 \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 50m, \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c3\u03ba\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7:<\/div><input type='hidden' name='question_id[]' id='qID_7' value='447' \/><input type='hidden' id='answerType447' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-447[]' id='answer-id-1392' class='answer   answerof-447 ' value='1392'   \/><label for='answer-id-1392' id='answer-label-1392' class=' answer'><span>120\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-447[]' id='answer-id-1393' class='answer   answerof-447 ' value='1393'   \/><label for='answer-id-1393' id='answer-label-1393' class=' answer'><span>90\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-447[]' id='answer-id-1394' class='answer   answerof-447 ' value='1394'   \/><label for='answer-id-1394' id='answer-label-1394' class=' answer'><span>60\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-447[]' id='answer-id-1395' class='answer   answerof-447 ' value='1395'   \/><label for='answer-id-1395' id='answer-label-1395' class=' answer'><span>40\u039d<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-448'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>\u03a3\u03b5 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 10kg, \u03c0\u03bf\u03c5 \u03ae\u03c4\u03b1\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ac \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf, \u03b7 \u03bc\u03cc\u03bd\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 F, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03bc\u03b5\u03c4\u03b1\u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03cc\u03c0\u03c9\u03c2 \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1. \u0386\u03bd\u03bf\u03b9\u03be\u03b5 \u03c4\u03b9\u03c2 \u03ba\u03ac\u03c1\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03af\u03bd\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03b1\u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9. \u03a4\u03b9\u03c2 \u03c5\u03c0\u03cc\u03bb\u03bf\u03b9\u03c0\u03b5\u03c2 \u03ac\u03c6\u03b7\u03c3\u03ad \u03c4\u03b5\u03c2 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03ad\u03c2.<br \/>\r\n<br \/>\r\n<div id=\"attachment_6461\" style=\"width: 379px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6461\" class=\" wp-image-6461\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-2-300x207.jpg\" alt=\"\" width=\"369\" height=\"255\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-2-300x207.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-2.jpg 712w\" sizes=\"auto, (max-width: 369px) 100vw, 369px\" \/><p id=\"caption-attachment-6461\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 8<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_8' value='448' \/><input type='hidden' id='answerType448' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div id='watuproFlashcard-1396' onclick=\"WatuPROFlipCard('1396');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>4s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>12m\/s<\/div><\/div><div id='watuproFlashcard-1397' onclick=\"WatuPROFlipCard('1397');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>6s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>18m\/s<\/div><\/div><div id='watuproFlashcard-1398' onclick=\"WatuPROFlipCard('1398');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>12s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>9m\/s<\/div><\/div><div id='watuproFlashcard-1399' onclick=\"WatuPROFlipCard('1399');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>15s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>-30m\/s<\/div><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-448[]' id='answer-id-1396' class='answer   answerof-448 ' value='1396'   \/><label for='answer-id-1396' id='answer-label-1396' class=' answer'><span>4s=12m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-448[]' id='answer-id-1397' class='answer   answerof-448 ' value='1397'   \/><label for='answer-id-1397' id='answer-label-1397' class=' answer'><span>6s=18m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-448[]' id='answer-id-1398' class='answer   answerof-448 ' value='1398'   \/><label for='answer-id-1398' id='answer-label-1398' class=' answer'><span>12s=9m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-448[]' id='answer-id-1399' class='answer   answerof-448 ' value='1399'   \/><label for='answer-id-1399' id='answer-label-1399' class=' answer'><span>15s=-30m\/s<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-449'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>\u0395\u03c1\u03b3\u03ac\u03c4\u03b7\u03c2 \u03c3\u03c0\u03c1\u03ce\u03c7\u03bd\u03b5\u03b9 \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03bf \u03bc\u03b5\u03c4\u03b1\u03c4\u03bf\u03c0\u03af\u03c3\u03b5\u03b9 \u03ba\u03b1\u03c4\u03ac \u0394x \u03c3\u03b5 \u03c7\u03c1\u03cc\u03bd\u03bf t. \u0391\u03bd, \u03bc\u03b5 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7, \u03c3\u03c0\u03c1\u03ce\u03be\u03b5\u03b9 \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03bc\u03b5 \u03c4\u03b7 \u03bc\u03b9\u03c3\u03ae \u03bc\u03ac\u03b6\u03b1, \u03c4\u03cc\u03c4\u03b5, \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03bf \u03bc\u03b5\u03c4\u03b1\u03c4\u03bf\u03c0\u03af\u03c3\u03b5\u03b9 \u03c0\u03ac\u03bb\u03b9 \u03ba\u03b1\u03c4\u03ac \u0394x \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af, \u03c0\u03b1\u03c1\u03b1\u03bb\u03b5\u03af\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b9\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ad\u03c2:<\/div><input type='hidden' name='question_id[]' id='qID_9' value='449' \/><input type='hidden' id='answerType449' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-449[]' id='answer-id-1400' class='answer   answerof-449 ' value='1400'   \/><label for='answer-id-1400' id='answer-label-1400' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-d18b8cbc21ca4f67d44cd052f1ee55ab_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#116;&#125;&#123;&#92;&#115;&#113;&#114;&#116;&#123;&#50;&#125;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"40\" width=\"24\" style=\"vertical-align: -16px;\"\/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-449[]' id='answer-id-1401' class='answer   answerof-449 ' value='1401'   \/><label for='answer-id-1401' id='answer-label-1401' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-469033762754d94f2e4ff6d459a88494_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#116;&#125;&#123;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"9\" style=\"vertical-align: -12px;\"\/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-449[]' id='answer-id-1402' class='answer   answerof-449 ' value='1402'   \/><label for='answer-id-1402' id='answer-label-1402' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-a1062bc09a02fdc261da54b5a251b906_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"6\" style=\"vertical-align: 0px;\"\/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-449[]' id='answer-id-1403' class='answer   answerof-449 ' value='1403'   \/><label for='answer-id-1403' id='answer-label-1403' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-f861067205e21fcba7186e847fc829c0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#50;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"15\" style=\"vertical-align: 0px;\"\/><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-450'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>\u03a4\u03bf \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 50kg, \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03c3\u03b5\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf. \u0386\u03bd\u03bf\u03b9\u03be\u03b5 \u03c4\u03b9\u03c2 \u03ba\u03ac\u03c1\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c0\u03b1\u03bd\u03c4\u03bf\u03cd\u03bd \u03c3\u03c9\u03c3\u03c4\u03ac \u03c3\u03c4\u03b9\u03c2 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03b1\u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9. \u03a4\u03b9\u03c2 \u03c5\u03c0\u03cc\u03bb\u03bf\u03b9\u03c0\u03b5\u03c2 \u03ac\u03c6\u03b7\u03c3\u03ad \u03c4\u03b5\u03c2 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03ad\u03c2.<br \/>\r\n<br \/>\r\n<div id=\"attachment_6464\" style=\"width: 417px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6464\" class=\" wp-image-6464\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-3-300x193.jpg\" alt=\"\" width=\"407\" height=\"262\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-3-300x193.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-3-280x180.jpg 280w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-3.jpg 637w\" sizes=\"auto, (max-width: 407px) 100vw, 407px\" \/><p id=\"caption-attachment-6464\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 10<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_10' value='450' \/><input type='hidden' id='answerType450' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div id='watuproFlashcard-1404' onclick=\"WatuPROFlipCard('1404');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>3s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0391\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 300N<\/div><\/div><div id='watuproFlashcard-1405' onclick=\"WatuPROFlipCard('1405');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>5s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0391\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03c6\u03bf\u03c1\u03ac \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/div><\/div><div id='watuproFlashcard-1406' onclick=\"WatuPROFlipCard('1406');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>8s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0391\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 -300N<\/div><\/div><div id='watuproFlashcard-1407' onclick=\"WatuPROFlipCard('1407');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>10s<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0388\u03c7\u03b5\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c4\u03bf\u03c0\u03b9\u03c3\u03c4\u03b5\u03af 200m<\/div><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-450[]' id='answer-id-1404' class='answer   answerof-450 ' value='1404'   \/><label for='answer-id-1404' id='answer-label-1404' class=' answer'><span>3s=\u0391\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 300N<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-450[]' id='answer-id-1405' class='answer   answerof-450 ' value='1405'   \/><label for='answer-id-1405' id='answer-label-1405' class=' answer'><span>5s=\u0391\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03c6\u03bf\u03c1\u03ac \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-450[]' id='answer-id-1406' class='answer   answerof-450 ' value='1406'   \/><label for='answer-id-1406' id='answer-label-1406' class=' answer'><span>8s=\u0391\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 -300N<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-450[]' id='answer-id-1407' class='answer   answerof-450 ' value='1407'   \/><label for='answer-id-1407' id='answer-label-1407' class=' answer'><span>10s=\u0388\u03c7\u03b5\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c4\u03bf\u03c0\u03b9\u03c3\u03c4\u03b5\u03af 200m<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-11' style=';'><div id='questionWrap-11'  class='   watupro-question-id-451'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>\u0394\u03cd\u03bf \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03b1 \u0391 \u03ba\u03b1\u03b9 \u0392 \u03ba\u03b9\u03bd\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03af\u03b4\u03b9\u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03bc. \u0395\u03ba\u03c4\u03cc\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ad\u03c2 \u03a4<sub>A<\/sub> \u03ba\u03b1\u03b9 \u03a4<sub>B<\/sub> \u03b4\u03b5\u03bd \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03b1\u03bc\u03af\u03b1 \u03ac\u03bb\u03bb\u03b7 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7. \u03a4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03ac\u03b6\u03b5\u03c2 m \u03ba\u03b1\u03b9 2m \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b1 \u03ba\u03b1\u03b9 \u03ba\u03ac\u03c0\u03bf\u03b9\u03b1 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae \u03bf\u03b9 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 20m\/s \u03b3\u03b9\u03b1 \u03c4\u03bf \u0391 \u03ba\u03b1\u03b9 10m\/s \u03b3\u03b9\u03b1 \u03c4\u03bf \u0392. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2;<br \/>\r\n<br \/>\r\n<div id=\"attachment_6465\" style=\"width: 432px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6465\" class=\" wp-image-6465\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-4-300x98.jpg\" alt=\"\" width=\"422\" height=\"138\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-4-300x98.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-4.jpg 698w\" sizes=\"auto, (max-width: 422px) 100vw, 422px\" \/><p id=\"caption-attachment-6465\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 11<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_11' value='451' \/><input type='hidden' id='answerType451' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-451[]' id='answer-id-1408' class='answer   answerof-451 watupro_max_selections-2' value='1408'  onclick='return WatuPRO.maxSelections(451,2, this);' \/><label for='answer-id-1408' id='answer-label-1408' class=' answer'><span>\u03a4<sub>B<\/sub>=2\u03a4<sub>A<\/sub> \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 m<sub>B<\/sub>=2m<sub>B<\/sub>.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-451[]' id='answer-id-1409' class='answer   answerof-451 watupro_max_selections-2' value='1409'  onclick='return WatuPRO.maxSelections(451,2, this);' \/><label for='answer-id-1409' id='answer-label-1409' class=' answer'><span>\u03a4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9, \u03bb\u03cc\u03b3\u03c9 \u03c4\u03c9\u03bd \u03c4\u03c1\u03b9\u03b2\u03ce\u03bd, \u03bc\u03b5 \u03af\u03c3\u03b5\u03c2 \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-451[]' id='answer-id-1410' class='answer   answerof-451 watupro_max_selections-2' value='1410'  onclick='return WatuPRO.maxSelections(451,2, this);' \/><label for='answer-id-1410' id='answer-label-1410' class=' answer'><span>\u03a4<sub>B<\/sub>>\u03a4<sub>A<\/sub> \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03bf \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b5 \u03b5\u03c0\u03b1\u03c6\u03ae \u03bc\u03b5 \u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03bc\u03b5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-451[]' id='answer-id-1411' class='answer   answerof-451 watupro_max_selections-2' value='1411'  onclick='return WatuPRO.maxSelections(451,2, this);' \/><label for='answer-id-1411' id='answer-label-1411' class=' answer'><span>\u03a4<sub>\u0391<\/sub>>\u03a4<sub>\u0392<\/sub> \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03bc\u03b5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-12' style=';'><div id='questionWrap-12'  class='   watupro-question-id-452'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>\u03a3\u03ce\u03bc\u03b1 10kg \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03bc\u03b5 4m\/s<sup>2<\/sup> \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 0,3. \u03a3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7:<\/div><input type='hidden' name='question_id[]' id='qID_12' value='452' \/><input type='hidden' id='answerType452' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-452[]' id='answer-id-1412' class='answer   answerof-452 ' value='1412'   \/><label for='answer-id-1412' id='answer-label-1412' class=' answer'><span>0\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-452[]' id='answer-id-1413' class='answer   answerof-452 ' value='1413'   \/><label for='answer-id-1413' id='answer-label-1413' class=' answer'><span>30\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-452[]' id='answer-id-1414' class='answer   answerof-452 ' value='1414'   \/><label for='answer-id-1414' id='answer-label-1414' class=' answer'><span>50\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-452[]' id='answer-id-1415' class='answer   answerof-452 ' value='1415'   \/><label for='answer-id-1415' id='answer-label-1415' class=' answer'><span>70\u039d<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-13' style=';'><div id='questionWrap-13'  class='   watupro-question-id-453'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>\u00a8\u0388\u03bd\u03b1\u03c2 \u03b5\u03c1\u03b3\u03ac\u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c0\u03c1\u03bf\u03bf\u03b4\u03b5\u03c5\u03c4\u03b9\u03ba\u03ac \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03bd\u03b1 \u03c3\u03c0\u03c1\u03ce\u03be\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03bc\u03ac\u03b6\u03b1\u03c2 20kg \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1. \u039c\u03cc\u03bb\u03b9\u03c2 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03ae \u03c4\u03bf\u03c5 \u03b3\u03af\u03bd\u03b5\u03b9 100\u039d, \u03c4\u03bf \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03b5\u03b9 \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 2m\/s<sup>2<\/sup>. \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_13' value='453' \/><input type='hidden' id='answerType453' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-453[]' id='answer-id-1416' class='answer   answerof-453 ' value='1416'   \/><label for='answer-id-1416' id='answer-label-1416' class=' answer'><span>0,2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-453[]' id='answer-id-1417' class='answer   answerof-453 ' value='1417'   \/><label for='answer-id-1417' id='answer-label-1417' class=' answer'><span>0,3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-453[]' id='answer-id-1418' class='answer   answerof-453 ' value='1418'   \/><label for='answer-id-1418' id='answer-label-1418' class=' answer'><span>0,4<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-453[]' id='answer-id-1419' class='answer   answerof-453 ' value='1419'   \/><label for='answer-id-1419' id='answer-label-1419' class=' answer'><span>0,5<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-14' style=';'><div id='questionWrap-14'  class='   watupro-question-id-454'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>\u0391\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03c6\u03c1\u03b5\u03bd\u03ac\u03c1\u03b5\u03b9. \u039a\u03b1\u03c4\u03ac \u03c4\u03b1 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03c1\u03b5\u03bd\u03b1\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2, \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bd\u03b1 \u03b1\u03ba\u03b9\u03bd\u03b7\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf, \u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae \u03c4\u03bf\u03c5 \u03b1\u03c5\u03c4\u03bf\u03ba\u03b9\u03bd\u03ae\u03c4\u03bf\u03c5 \u03c0\u03b1\u03cd\u03b5\u03b9 \u03bd\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c1\u03cc\u03b4\u03b5\u03c2 \u03b3\u03bb\u03b9\u03c3\u03c4\u03c1\u03bf\u03cd\u03bd \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2;<\/div><input type='hidden' name='question_id[]' id='qID_14' value='454' \/><input type='hidden' id='answerType454' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-454[]' id='answer-id-1420' class='answer   answerof-454 watupro_max_selections-2' value='1420'  onclick='return WatuPRO.maxSelections(454,2, this);' \/><label for='answer-id-1420' id='answer-label-1420' class=' answer'><span>\u03a4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03c4\u03c1\u03b9\u03b2\u03ae \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03bf\u03c1\u03b9\u03b1\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-454[]' id='answer-id-1421' class='answer   answerof-454 watupro_max_selections-2' value='1421'  onclick='return WatuPRO.maxSelections(454,2, this);' \/><label for='answer-id-1421' id='answer-label-1421' class=' answer'><span>\u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03c3\u03c4\u03b1\u03bc\u03b1\u03c4\u03ac\u03b5\u03b9, \u03c3\u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-454[]' id='answer-id-1422' class='answer   answerof-454 watupro_max_selections-2' value='1422'  onclick='return WatuPRO.maxSelections(454,2, this);' \/><label for='answer-id-1422' id='answer-label-1422' class=' answer'><span>\u038c\u03c4\u03b1\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03b1\u03ba\u03b9\u03bd\u03b7\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af, \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03b4\u03b5\u03bd \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03b1\u03bc\u03af\u03b1 \u03c4\u03c1\u03b9\u03b2\u03ae.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-454[]' id='answer-id-1423' class='answer   answerof-454 watupro_max_selections-2' value='1423'  onclick='return WatuPRO.maxSelections(454,2, this);' \/><label for='answer-id-1423' id='answer-label-1423' class=' answer'><span>\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b5\u03af \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8b33e1e30604f639ccbfad201a1a3b4c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#109;&#117;&#32;&#61;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#118;&#95;&#48;&#125;&#123;&#103;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"53\" style=\"vertical-align: -16px;\"\/>. t  \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c1\u03ba\u03b5\u03af \u03c4\u03bf \u03c6\u03c1\u03b5\u03bd\u03ac\u03c1\u03b9\u03c3\u03bc\u03b1.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-15' style=';'><div id='questionWrap-15'  class='   watupro-question-id-455'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>\u0391\u03c6\u03ae\u03bd\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c0\u03cc \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03cd\u03c8\u03bf\u03c2 \u03bd\u03b1 \u03c0\u03ad\u03c3\u03b5\u03b9 \u03b5\u03bb\u03b5\u03cd\u03b8\u03b5\u03c1\u03b1 (\u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2) \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1. \u0391\u03c0\u03cc \u03c4\u03bf \u03bc\u03ad\u03c3\u03bf \u03c4\u03bf\u03c5 \u03cd\u03c8\u03bf\u03c5\u03c2 \u03b1\u03c5\u03c4\u03bf\u03cd \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc 2s \u03b1\u03c6\u03ae\u03bd\u03bf\u03c5\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03ac\u03bb\u03bb\u03bf, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2 \u03c4\u03b1\u03c5\u03c4\u03cc\u03c7\u03c1\u03bf\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf. \u039b\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03ad\u03b3\u03b3\u03b9\u03c3\u03b7 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-c33a4987e0bff4cd8aa57d8ea6d3065b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#113;&#114;&#116;&#123;&#52;&#56;&#125;&#32;&#92;&#97;&#112;&#112;&#114;&#111;&#120;&#32;&#55;\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"64\" style=\"vertical-align: -1px;\"\/>, \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03c0\u03c4\u03ce\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03ce\u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_15' value='455' \/><input type='hidden' id='answerType455' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-455[]' id='answer-id-1424' class='answer   answerof-455 ' value='1424'   \/><label for='answer-id-1424' id='answer-label-1424' class=' answer'><span>0,5s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-455[]' id='answer-id-1425' class='answer   answerof-455 ' value='1425'   \/><label for='answer-id-1425' id='answer-label-1425' class=' answer'><span>7,5s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-455[]' id='answer-id-1426' class='answer   answerof-455 ' value='1426'   \/><label for='answer-id-1426' id='answer-label-1426' class=' answer'><span>10,5s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-455[]' id='answer-id-1427' class='answer   answerof-455 ' value='1427'   \/><label for='answer-id-1427' id='answer-label-1427' class=' answer'><span>12s<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-16' style=';'><div id='questionWrap-16'  class='   watupro-question-id-456'>\n\t\t\t<div class='question-content'><p><span class='watupro_num'>16. <\/span>\u03a3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 5kg \u03b1\u03bd\u03b5\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03c0\u03ac\u03bd\u03c9 \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 2m\/s<sup>2<\/sup> \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 F.\u0391\u03bd \u03b1\u03bd\u03b5\u03b2\u03b5\u03af \u03ba\u03b1\u03c4\u03ac 5m:<\/p>\n<ul>\n<li>\u03a4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 F \u03b5\u03af\u03bd\u03b1\u03b9 <input type=\"text\" size=\"10\" name=\"gap_456_1\" class=\"watupro-gap answer answerof-456\" value=\"\"   >J<\/li>\n<li>\u03a4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03bf\u03c5 \u03b2\u03ac\u03c1\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 <input type=\"text\" size=\"10\" name=\"gap_456_2\" class=\"watupro-gap answer answerof-456\" value=\"\"   >J<\/li>\n<li>\u0397 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac <input type=\"text\" size=\"10\" name=\"gap_456_3\" class=\"watupro-gap answer answerof-456\" value=\"\"   >J.<\/li>\n<\/ul>\n<p>\u03a3\u03c5\u03bc\u03c0\u03bb\u03ae\u03c1\u03c9\u03c3\u03b5 \u03c4\u03b1 \u03ba\u03b5\u03bd\u03ac \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2.<\/p>\n<input type='hidden' name='question_id[]' id='qID_16' value='456' \/><input type='hidden' id='answerType456' value='gaps'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-17' style=';'><div id='questionWrap-17'  class='   watupro-question-id-457'>\n\t\t\t<div class='question-content'><p><span class='watupro_num'>17. <\/span>\u03a3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 20kg \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F=100\u039d, \u03c5\u03c0\u03cc \u03b3\u03c9\u03bd\u03af\u03b1 \u03b8, \u03bc\u03b5 \u03b7\u03bc\u03b8=0,6 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b8=0,8. \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 0,3 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1. \u0393\u03b9\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 10m:<\/p>\n<ul>\n<li>\u03a4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 F \u03b5\u03af\u03bd\u03b1\u03b9 <input type=\"text\" size=\"10\" name=\"gap_457_1\" class=\"watupro-gap answer answerof-457\" value=\"\"   >J<\/li>\n<li>\u03a4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03a4 \u03b5\u03af\u03bd\u03b1\u03b9 <input type=\"text\" size=\"10\" name=\"gap_457_2\" class=\"watupro-gap answer answerof-457\" value=\"\"   >J<\/li>\n<li>\u0397 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ac \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c3\u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2 \u03c4\u03c9\u03bd 10m \u03b5\u03af\u03bd\u03b1\u03b9 <input type=\"text\" size=\"10\" name=\"gap_457_3\" class=\"watupro-gap answer answerof-457\" value=\"\"   >J<\/li>\n<\/ul>\n<p>\u03a3\u03c5\u03bc\u03c0\u03bb\u03ae\u03c1\u03c9\u03c3\u03b5 \u03c4\u03b1 \u03ba\u03b5\u03bd\u03ac \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2.<br \/>\n<div id=\"attachment_6472\" style=\"width: 472px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6472\" class=\" wp-image-6472\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-5-300x85.jpg\" alt=\"\" width=\"462\" height=\"131\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-5-300x85.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-5.jpg 762w\" sizes=\"auto, (max-width: 462px) 100vw, 462px\" \/><p id=\"caption-attachment-6472\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 17<\/p><\/div><\/p>\n<input type='hidden' name='question_id[]' id='qID_17' value='457' \/><input type='hidden' id='answerType457' value='gaps'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-18' style=';'><div id='questionWrap-18'  class='   watupro-question-id-458'>\n\t\t\t<div class='question-content'><span class='watupro_num'>18. <\/span>\u0391\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03af\u03c7\u03b9\u03c3\u03b5 \u03c4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c7\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b5\u03be\u03b9\u03ac\u03c2.<div class='question-choices'><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_458\"><tr><td class=\"watupro-matrix-left-cell\">\u0395\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable458\" id=\"watuPRODroppableCell1428\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-0-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1428', 0);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-ed8e86fbe064c5df81aa8a18cc9f12cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#45;&#97;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"53\" style=\"vertical-align: -3px;\"\/><!--WTPMD59328bb53034b36e915d4f6399bfb51a7--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1428', 1);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-1a039c662da467a6b6975af57d21e8db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#118;&#125;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"25\" style=\"vertical-align: -12px;\"\/><!--WTPMD582b4962fa9efcf63ac4149d39f177326--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1428', 2);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8ea351035f3033422d9ae56fbca807cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#116;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#125;&#97;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"79\" style=\"vertical-align: -12px;\"\/><!--WTPMD5166b507cbafb34b9f3d683549a6f851d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1428', 3);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-19bfd0b7fee81dfb59cc9865417ba8ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#87;&#61;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#75;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"102\" style=\"vertical-align: -8px;\"\/><!--WTPMD5c7bf4dad14cbf0ebb2ae0703d93ac93e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1428', 4);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-14e6c9368b0ef5fefb110da8738ae37a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#70;&#61;&#109;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"91\" style=\"vertical-align: -8px;\"\/><!--WTPMD530e42a73fea8e4131cb257e5fe0bdb91--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-458 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1428\" name=\"matrix-left-1428\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u03a4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable458\" id=\"watuPRODroppableCell1429\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-1-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1429', 0);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-ed8e86fbe064c5df81aa8a18cc9f12cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#45;&#97;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"53\" style=\"vertical-align: -3px;\"\/><!--WTPMD59328bb53034b36e915d4f6399bfb51a7--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1429', 1);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-1a039c662da467a6b6975af57d21e8db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#118;&#125;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"25\" style=\"vertical-align: -12px;\"\/><!--WTPMD582b4962fa9efcf63ac4149d39f177326--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1429', 2);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8ea351035f3033422d9ae56fbca807cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#116;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#125;&#97;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"79\" style=\"vertical-align: -12px;\"\/><!--WTPMD5166b507cbafb34b9f3d683549a6f851d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1429', 3);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-19bfd0b7fee81dfb59cc9865417ba8ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#87;&#61;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#75;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"102\" style=\"vertical-align: -8px;\"\/><!--WTPMD5c7bf4dad14cbf0ebb2ae0703d93ac93e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1429', 4);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-14e6c9368b0ef5fefb110da8738ae37a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#70;&#61;&#109;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"91\" style=\"vertical-align: -8px;\"\/><!--WTPMD530e42a73fea8e4131cb257e5fe0bdb91--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-458 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1429\" name=\"matrix-left-1429\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u039c\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable458\" id=\"watuPRODroppableCell1430\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-2-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1430', 0);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-ed8e86fbe064c5df81aa8a18cc9f12cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#45;&#97;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"53\" style=\"vertical-align: -3px;\"\/><!--WTPMD59328bb53034b36e915d4f6399bfb51a7--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1430', 1);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-1a039c662da467a6b6975af57d21e8db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#118;&#125;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"25\" style=\"vertical-align: -12px;\"\/><!--WTPMD582b4962fa9efcf63ac4149d39f177326--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1430', 2);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8ea351035f3033422d9ae56fbca807cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#116;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#125;&#97;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"79\" style=\"vertical-align: -12px;\"\/><!--WTPMD5166b507cbafb34b9f3d683549a6f851d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1430', 3);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-19bfd0b7fee81dfb59cc9865417ba8ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#87;&#61;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#75;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"102\" style=\"vertical-align: -8px;\"\/><!--WTPMD5c7bf4dad14cbf0ebb2ae0703d93ac93e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1430', 4);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-14e6c9368b0ef5fefb110da8738ae37a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#70;&#61;&#109;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"91\" style=\"vertical-align: -8px;\"\/><!--WTPMD530e42a73fea8e4131cb257e5fe0bdb91--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-458 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1430\" name=\"matrix-left-1430\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u0398\u03b5\u03bc\u03b5\u03bb\u03b9\u03ce\u03c3\u03b7\u03c2 \u03bd\u03cc\u03bc\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae\u03c2<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable458\" id=\"watuPRODroppableCell1431\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-3-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1431', 0);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-ed8e86fbe064c5df81aa8a18cc9f12cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#45;&#97;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"53\" style=\"vertical-align: -3px;\"\/><!--WTPMD59328bb53034b36e915d4f6399bfb51a7--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1431', 1);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-1a039c662da467a6b6975af57d21e8db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#118;&#125;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"25\" style=\"vertical-align: -12px;\"\/><!--WTPMD582b4962fa9efcf63ac4149d39f177326--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1431', 2);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8ea351035f3033422d9ae56fbca807cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#116;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#125;&#97;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"79\" style=\"vertical-align: -12px;\"\/><!--WTPMD5166b507cbafb34b9f3d683549a6f851d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1431', 3);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-19bfd0b7fee81dfb59cc9865417ba8ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#87;&#61;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#75;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"102\" style=\"vertical-align: -8px;\"\/><!--WTPMD5c7bf4dad14cbf0ebb2ae0703d93ac93e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1431', 4);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-14e6c9368b0ef5fefb110da8738ae37a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#70;&#61;&#109;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"91\" style=\"vertical-align: -8px;\"\/><!--WTPMD530e42a73fea8e4131cb257e5fe0bdb91--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-458 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1431\" name=\"matrix-left-1431\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u0398\u03b5\u03ce\u03c1\u03b7\u03bc\u03b1 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae\u03c2 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable458\" id=\"watuPRODroppableCell1432\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-4-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1432', 0);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-ed8e86fbe064c5df81aa8a18cc9f12cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#45;&#97;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"53\" style=\"vertical-align: -3px;\"\/><!--WTPMD59328bb53034b36e915d4f6399bfb51a7--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1432', 1);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-1a039c662da467a6b6975af57d21e8db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#118;&#125;&#123;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"25\" style=\"vertical-align: -12px;\"\/><!--WTPMD582b4962fa9efcf63ac4149d39f177326--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1432', 2);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8ea351035f3033422d9ae56fbca807cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#118;&#95;&#48;&#116;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#125;&#97;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"36\" width=\"79\" style=\"vertical-align: -12px;\"\/><!--WTPMD5166b507cbafb34b9f3d683549a6f851d--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1432', 3);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-19bfd0b7fee81dfb59cc9865417ba8ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#87;&#61;&#92;&#68;&#101;&#108;&#116;&#97;&#32;&#75;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"102\" style=\"vertical-align: -8px;\"\/><!--WTPMD5c7bf4dad14cbf0ebb2ae0703d93ac93e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-4-4\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-4\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1432', 4);return false;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-14e6c9368b0ef5fefb110da8738ae37a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#115;&#117;&#109;&#32;&#70;&#61;&#109;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"91\" style=\"vertical-align: -8px;\"\/><!--WTPMD530e42a73fea8e4131cb257e5fe0bdb91--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-458 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1432\" name=\"matrix-left-1432\" value=\"\"><\/td><\/tr><\/table><\/div><input type='hidden' name='question_id[]' id='qID_18' value='458' \/><input type='hidden' id='answerType458' value='nmatrix'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-19' style=';'><div id='questionWrap-19'  class='   watupro-question-id-459'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>\u0391\u03c0\u03cc \u03c4\u03b7 \u03b2\u03ac\u03c3\u03b7 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b3\u03c9\u03bd\u03af\u03b1\u03c2 \u03b8 \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bc, \u03b2\u03ac\u03bb\u03b5\u03c4\u03b1\u03b9 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03b5 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c5<sub>0<\/sub>. \u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b8\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03b5\u03b9 \u03b5\u03c0\u03af \u03c4\u03bf\u03c5 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 s \u03c0\u03bf\u03c5 \u03b4\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7:<br \/>\r\n<br \/>\r\n<div id=\"attachment_6473\" style=\"width: 399px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6473\" class=\" wp-image-6473\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-6-300x138.jpg\" alt=\"\" width=\"389\" height=\"179\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-6-300x138.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/05\/Online-6.jpg 490w\" sizes=\"auto, (max-width: 389px) 100vw, 389px\" \/><p id=\"caption-attachment-6473\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 19<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_19' value='459' \/><input type='hidden' id='answerType459' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-459[]' id='answer-id-1433' class='answer   answerof-459 ' value='1433'   \/><label for='answer-id-1433' id='answer-label-1433' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-6bad0f08dd920d8e95fb314014ceabe4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#115;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#118;&#95;&#48;&#94;&#50;&#125;&#123;&#50;&#32;&#103;&#40;&#92;&#101;&#116;&#97;&#32;&#92;&#109;&#117;&#32;&#32;&#92;&#116;&#104;&#101;&#116;&#97;&#32;&#43;&#92;&#109;&#117;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#92;&#115;&#105;&#103;&#109;&#97;&#32;&#92;&#117;&#112;&#115;&#105;&#108;&#111;&#110;&#32;&#92;&#110;&#117;&#32;&#92;&#116;&#104;&#101;&#116;&#97;&#41;&#125;&#32;\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"180\" style=\"vertical-align: -16px;\"\/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-459[]' id='answer-id-1434' class='answer   answerof-459 ' value='1434'   \/><label for='answer-id-1434' id='answer-label-1434' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-c3df4808420f4186657ad0689a051d91_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#115;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#118;&#95;&#48;&#94;&#50;&#125;&#123;&#50;&#103;&#40;&#92;&#109;&#117;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#92;&#101;&#116;&#97;&#32;&#92;&#109;&#117;&#32;&#32;&#92;&#116;&#104;&#101;&#116;&#97;&#32;&#43;&#32;&#92;&#115;&#105;&#103;&#109;&#97;&#32;&#92;&#117;&#112;&#115;&#105;&#108;&#111;&#110;&#32;&#92;&#110;&#117;&#32;&#92;&#116;&#104;&#101;&#116;&#97;&#41;&#125;&#32;\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"180\" style=\"vertical-align: -16px;\"\/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-459[]' id='answer-id-1435' class='answer   answerof-459 ' value='1435'   \/><label for='answer-id-1435' id='answer-label-1435' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-93a80a095d38c773451e67691583e7ff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#115;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#118;&#95;&#48;&#94;&#50;&#125;&#123;&#50;&#103;&#40;&#92;&#101;&#116;&#97;&#32;&#92;&#109;&#117;&#32;&#32;&#92;&#116;&#104;&#101;&#116;&#97;&#32;&#43;&#32;&#92;&#115;&#105;&#103;&#109;&#97;&#32;&#92;&#117;&#112;&#115;&#105;&#108;&#111;&#110;&#32;&#92;&#110;&#117;&#32;&#92;&#116;&#104;&#101;&#116;&#97;&#41;&#125;&#32;\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"157\" style=\"vertical-align: -16px;\"\/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-459[]' id='answer-id-1436' class='answer   answerof-459 ' value='1436'   \/><label for='answer-id-1436' id='answer-label-1436' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-7afc2c5cf2c72cc0863775d146b941d8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#115;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#118;&#95;&#48;&#94;&#50;&#125;&#123;&#50;&#32;&#92;&#109;&#117;&#32;&#103;&#125;&#32;\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"63\" style=\"vertical-align: -16px;\"\/><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-20' style=';'><div id='questionWrap-20'  class='   watupro-question-id-460'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>\u0391\u03c0\u03cc \u03cd\u03c8\u03bf\u03c2 10m \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2, \u03b5\u03ba\u03c4\u03bf\u03be\u03b5\u03cd\u03bf\u03c5\u03bc\u03b5 \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03c0\u03ac\u03bd\u03c9,\u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2, \u03c3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 1kg, \u03bc\u03b5 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 100J. \u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c0\u03ad\u03c6\u03c4\u03b5\u03b9 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1:<\/div><input type='hidden' name='question_id[]' id='qID_20' value='460' \/><input type='hidden' id='answerType460' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-460[]' id='answer-id-1437' class='answer   answerof-460 ' value='1437'   \/><label for='answer-id-1437' id='answer-label-1437' class=' answer'><span>10m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-460[]' id='answer-id-1438' class='answer   answerof-460 ' value='1438'   \/><label for='answer-id-1438' id='answer-label-1438' class=' answer'><span>20m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-460[]' id='answer-id-1439' class='answer   answerof-460 ' value='1439'   \/><label for='answer-id-1439' id='answer-label-1439' class=' answer'><span>40m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-460[]' id='answer-id-1440' class='answer   answerof-460 ' value='1440'   \/><label for='answer-id-1440' id='answer-label-1440' class=' answer'><span>50m\/s<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-21'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" 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