{"id":6388,"date":"2018-04-10T18:25:11","date_gmt":"2018-04-10T15:25:11","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=6388"},"modified":"2018-04-10T18:25:11","modified_gmt":"2018-04-10T15:25:11","slug":"2o-%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=6388","title":{"rendered":"2o \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=\"submittingExam36\" 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-36\"><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-36\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-421'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>\u03a3\u03c9\u03bc\u03b1\u03c4\u03af\u03b4\u03b9\u03bf \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03ac\u03be\u03bf\u03bd\u03b1 x\u0384x. \u03a4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 0s \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 -200m \u03ba\u03b9\u03bd\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b8\u03b5\u03c4\u03b9\u03ba\u03ac \u03c4\u03bf\u03c5 \u03ac\u03be\u03bf\u03bd\u03b1 x\u0384x \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1. \u03a4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 2s \u03c0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u03c4\u03bf\u03c5 \u03b1\u03be\u03bf\u03bd\u03b1. \u0397 \u03b8\u03ad\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c9\u03bc\u03b1\u03c4\u03b9\u03b4\u03af\u03bf\u03c5 \u03c4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 5s \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_1' value='421' \/><input type='hidden' id='answerType421' 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-421[]' id='answer-id-1288' class='answer   answerof-421 ' value='1288'   \/><label for='answer-id-1288' id='answer-label-1288' class=' answer'><span>100m<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-421[]' id='answer-id-1289' class='answer   answerof-421 ' value='1289'   \/><label for='answer-id-1289' id='answer-label-1289' class=' answer'><span>200m<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-421[]' id='answer-id-1290' class='answer   answerof-421 ' value='1290'   \/><label for='answer-id-1290' id='answer-label-1290' class=' answer'><span>300m<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-421[]' id='answer-id-1291' class='answer   answerof-421 ' value='1291'   \/><label for='answer-id-1291' id='answer-label-1291' class=' answer'><span>500m<\/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-423'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>\u039a\u03b9\u03bd\u03b7\u03c4\u03cc \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b1 10s \u03c4\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03b5\u03b9 \u03bc\u03b5 20m\/s. \u0395\u03bd\u03ce \u03c4\u03b1 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b1 20s \u03bc\u03b5 35m\/s. \u0397 \u03bc\u03ad\u03c3\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03c7\u03c1\u03cc\u03bd\u03bf \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_2' value='423' \/><input type='hidden' id='answerType423' 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-423[]' id='answer-id-1296' class='answer   answerof-423 ' value='1296'   \/><label for='answer-id-1296' id='answer-label-1296' class=' answer'><span>25m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-423[]' id='answer-id-1297' class='answer   answerof-423 ' value='1297'   \/><label for='answer-id-1297' id='answer-label-1297' class=' answer'><span>27,5m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-423[]' id='answer-id-1298' class='answer   answerof-423 ' value='1298'   \/><label for='answer-id-1298' id='answer-label-1298' class=' answer'><span>30m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-423[]' id='answer-id-1299' class='answer   answerof-423 ' value='1299'   \/><label for='answer-id-1299' id='answer-label-1299' class=' answer'><span>32,5m\/s<\/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-422'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>\u0397 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\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 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc;<br \/>\r\n<br \/>\r\n<div id=\"attachment_6390\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6390\" class=\"size-medium wp-image-6390\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-1-300x232.jpg\" alt=\"\" width=\"300\" height=\"232\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-1-300x232.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-1.jpg 666w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-6390\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 2<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_3' value='422' \/><input type='hidden' id='answerType422' 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-422[]' id='answer-id-1292' class='answer   answerof-422 watupro_max_selections-2' value='1292'  onclick='return WatuPRO.maxSelections(422,2, this);' \/><label for='answer-id-1292' id='answer-label-1292' class=' answer'><span>\u03a4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 10s \u03c3\u03c4\u03b1\u03bc\u03b1\u03c4\u03ac\u03b5\u03b9.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-422[]' id='answer-id-1293' class='answer   answerof-422 watupro_max_selections-2' value='1293'  onclick='return WatuPRO.maxSelections(422,2, this);' \/><label for='answer-id-1293' id='answer-label-1293' class=' answer'><span>\u039a\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03b4\u03c5\u03bd\u03c3\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03b1\u03c4\u03bf\u03c0\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ac 300m.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-422[]' id='answer-id-1294' class='answer   answerof-422 watupro_max_selections-2' value='1294'  onclick='return WatuPRO.maxSelections(422,2, this);' \/><label for='answer-id-1294' id='answer-label-1294' class=' answer'><span>\u0397 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 -3m\/s<sup>2<\/sup>.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-422[]' id='answer-id-1295' class='answer   answerof-422 watupro_max_selections-2' value='1295'  onclick='return WatuPRO.maxSelections(422,2, this);' \/><label for='answer-id-1295' id='answer-label-1295' class=' answer'><span>\u03a4\u03bf \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03bd\u03cd\u03b5\u03b9 \u03c3\u03c4\u03b1 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b1 5s \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03bf \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c0\u03bf\u03c5 \u03b4\u03b9\u03ac\u03bd\u03c5\u03c3\u03b5 \u03c3\u03c4\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b1 5s.<\/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-424'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>\u0394\u03cd\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03ac \u0391 \u03ba\u03b1\u03b9 \u0392 \u03be\u03b5\u03ba\u03b9\u03bd\u03bf\u03cd\u03bd \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae \u03b1\u03c0\u03cc \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1. \u03a4\u03bf \u0391 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 10m\/s \u03ba\u03b1\u03b9 \u03c4\u03bf \u0392 \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 2m\/s<sup>2<\/sup>. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \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_4' value='424' \/><input type='hidden' id='answerType424' 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-424[]' id='answer-id-1300' class='answer   answerof-424 watupro_max_selections-2' value='1300'  onclick='return WatuPRO.maxSelections(424,2, this);' \/><label for='answer-id-1300' id='answer-label-1300' class=' answer'><span>\u03a4\u03bf \u0392 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03b4\u03b5 \u03b8\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c0\u03bf\u03c4\u03ad \u03c4\u03bf \u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-424[]' id='answer-id-1301' class='answer   answerof-424 watupro_max_selections-2' value='1301'  onclick='return WatuPRO.maxSelections(424,2, this);' \/><label for='answer-id-1301' id='answer-label-1301' class=' answer'><span>\u03a4\u03bf \u0391 \u03b4\u03b5 \u03b8\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c0\u03bf\u03c4\u03ad \u03c4\u03bf \u0392.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-424[]' id='answer-id-1302' class='answer   answerof-424 watupro_max_selections-2' value='1302'  onclick='return WatuPRO.maxSelections(424,2, this);' \/><label for='answer-id-1302' id='answer-label-1302' class=' answer'><span>\u03a4\u03bf \u0391 \u03b8\u03b1 \u03c0\u03c1\u03bf\u03b7\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03bf\u03c5 \u0392 \u03c3\u03c4\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b1 10s.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-424[]' id='answer-id-1303' class='answer   answerof-424 watupro_max_selections-2' value='1303'  onclick='return WatuPRO.maxSelections(424,2, this);' \/><label for='answer-id-1303' id='answer-label-1303' class=' answer'><span>\u039c\u03b5\u03c4\u03ac \u03c4\u03b1 100m \u03c4\u03bf \u0392 \u03b8\u03b1 \u03c0\u03c1\u03bf\u03b7\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03bf\u03c5 \u0391.<\/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-425'>\n\t\t\t<div class='question-content'><p><span class='watupro_num'>5. <\/span>\u0388\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b8\u03ad\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03b1\u03b2\u03ac\u03bb\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1. \u03a3\u03cd\u03c1\u03b5 \u03c4\u03b7\u03bd \u03bc\u03c0\u03ac\u03c1\u03b1 \u03c3\u03b5 \u03bc\u03af\u03b1 \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5 \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b8\u03b1 \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7.<\/p>\n<div id=\"attachment_6395\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6395\" class=\"size-medium wp-image-6395\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-2-300x243.jpg\" alt=\"\" width=\"300\" height=\"243\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-2-300x243.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-2.jpg 635w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-6395\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 5<\/p><\/div>\n<div class='watupro-slider' id='watuPROSlider425'><\/div><div id='watuPROSliderValue425'>0<\/div><input type=\"hidden\" name=\"answer-425[]\" class=\"answerof-425\" id=\"field-watuPROSliderValue425\" value=\"0\">\t\t\t\t\t<script type=\"text\/javascript\">\n\t\t\t\t\tdocument.addEventListener('DOMContentLoaded', function(event) {\n\t\t\t\t\t   jQuery('#watuPROSlider425').slider({\n\t\t\t\t\t   \tmin: 0,\n\t\t\t\t\t   \tmax: 9,\n\t\t\t\t\t   \tvalue: 0,\n\t\t\t\t\t   \tslide: function( event, ui ) {\n\t\t\t\t\t   \t\tjQuery('#watuPROSliderValue425').html(ui.value);\n\t\t\t\t\t   \t\tjQuery('#field-watuPROSliderValue425').val(ui.value);\n\t\t\t\t\t   \t}\n\t\t\t\t\t   });\n\t\t\t\t\t});\n\t\t\t\t\t<\/script>\n\t\t\t\t\t<input type='hidden' name='question_id[]' id='qID_5' value='425' \/><input type='hidden' id='answerType425' value='slider'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-428'>\n\t\t\t<div class='question-content'><span class='watupro_num'>6. <\/span>\u0391\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03af\u03c7\u03b9\u03c3\u03b5 \u03c4\u03b9\u03c2 \u03b5\u03be\u03b9\u03c3\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03bf \u03b5\u03af\u03b4\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7 \u03b4\u03b5\u03be\u03b9\u03ac \u03c3\u03c4\u03ae\u03bb\u03b7. (\u039a\u03bb\u03b9\u03ba \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c3\u03bf\u03c5 \u03c3\u03c4\u03b7 \u03b4\u03b5\u03be\u03b9\u03ac \u03c3\u03c4\u03ae\u03bb\u03b7)<div class='question-choices'><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_428\"><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-239f638d1907b750628316564411b5c5_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;&#40;&#45;&#51;&#109;&#41;&#43;&#40;&#49;&#48;&#109;&#47;&#115;&#41;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"151\" style=\"vertical-align: -5px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable428\" id=\"watuPRODroppableCell1315\"><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, 'watuPRODroppableCell1315', 0);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1315', 1);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ae<!--WTPMD55234f0ca3ff3aa9fce0af5fe7c151b99--><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, 'watuPRODroppableCell1315', 2);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1315', 3);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><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, 'watuPRODroppableCell1315', 4);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-428 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1315\" name=\"matrix-left-1315\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-22806e683f42f85fa5ebc4450b850f6d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#40;&#49;&#48;&#109;&#47;&#115;&#41;&#116;&#45;&#40;&#50;&#109;&#47;&#115;&#94;&#50;&#41;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"177\" style=\"vertical-align: -5px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable428\" id=\"watuPRODroppableCell1319\"><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, 'watuPRODroppableCell1319', 0);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1319', 1);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ae<!--WTPMD55234f0ca3ff3aa9fce0af5fe7c151b99--><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, 'watuPRODroppableCell1319', 2);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1319', 3);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><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, 'watuPRODroppableCell1319', 4);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-428 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1319\" name=\"matrix-left-1319\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-b242d30c2744c556effce00865ba85ba_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;&#40;&#45;&#52;&#109;&#47;&#115;&#41;&#116;&#43;&#40;&#51;&#109;&#47;&#115;&#94;&#50;&#41;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"183\" style=\"vertical-align: -5px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable428\" id=\"watuPRODroppableCell1316\"><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, 'watuPRODroppableCell1316', 0);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1316', 1);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ae<!--WTPMD55234f0ca3ff3aa9fce0af5fe7c151b99--><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, 'watuPRODroppableCell1316', 2);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1316', 3);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><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, 'watuPRODroppableCell1316', 4);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-428 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1316\" name=\"matrix-left-1316\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-1c1e3ac94d32bb6c62f7f6da0e66b6f0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#40;&#45;&#51;&#109;&#47;&#115;&#41;&#116;&#45;&#40;&#56;&#109;&#47;&#115;&#94;&#50;&#41;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"183\" style=\"vertical-align: -5px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable428\" id=\"watuPRODroppableCell1317\"><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, 'watuPRODroppableCell1317', 0);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1317', 1);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ae<!--WTPMD55234f0ca3ff3aa9fce0af5fe7c151b99--><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, 'watuPRODroppableCell1317', 2);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1317', 3);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><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, 'watuPRODroppableCell1317', 4);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-428 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1317\" name=\"matrix-left-1317\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-7a2623be297f5ee792450978031569c1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#53;&#109;&#43;&#40;&#53;&#109;&#47;&#115;&#94;&#50;&#41;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"129\" style=\"vertical-align: -5px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable428\" id=\"watuPRODroppableCell1318\"><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, 'watuPRODroppableCell1318', 0);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1318', 1);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ae<!--WTPMD55234f0ca3ff3aa9fce0af5fe7c151b99--><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, 'watuPRODroppableCell1318', 2);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD55084ed3067b9e1309227fccaaf6bdbcf--><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, 'watuPRODroppableCell1318', 3);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><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, 'watuPRODroppableCell1318', 4);return false;\">\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7<!--WTPMD56b6a41e06a3019805d70c927f04b0eff--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-428 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1318\" name=\"matrix-left-1318\" value=\"\"><\/td><\/tr><\/table><\/div><input type='hidden' name='question_id[]' id='qID_6' value='428' \/><input type='hidden' id='answerType428' value='nmatrix'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-427'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>\u03a3\u03b5 \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u0391 \u03ba\u03b1\u03b9 \u0392 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03af\u03c3\u03b5\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2. \u03a4\u03bf \u0391 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac 5m\/s \u03ba\u03ac\u03b8\u03b5 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03cc\u03bb\u03b5\u03c0\u03c4\u03bf \u03ba\u03b1\u03b9 \u03c4\u03bf \u0392 \u03ba\u03b1\u03c4\u03ac 10m\/s \u03ba\u03ac\u03b8\u03b5 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03cc\u03bb\u03b5\u03c0\u03c4\u03bf. \u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03c0\u03c1\u03cc\u03c4\u03b1\u03c3\u03b7.<\/div><input type='hidden' name='question_id[]' id='qID_7' value='427' \/><input type='hidden' id='answerType427' 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-427[]' id='answer-id-1311' class='answer   answerof-427 ' value='1311'   \/><label for='answer-id-1311' id='answer-label-1311' class=' answer'><span>\u03a4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03af\u03c3\u03b5\u03c2 \u03bc\u03ac\u03b6\u03b5\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-427[]' id='answer-id-1312' class='answer   answerof-427 ' value='1312'   \/><label for='answer-id-1312' id='answer-label-1312' class=' answer'><span>\u03a4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03af\u03c3\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1\u03c4\u03af \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03af\u03c3\u03b5\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-427[]' id='answer-id-1313' class='answer   answerof-427 ' value='1313'   \/><label for='answer-id-1313' id='answer-label-1313' class=' answer'><span>\u03a4\u03bf \u0392 \u03ad\u03c7\u03b5\u03b9 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03bc\u03ac\u03b6\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-427[]' id='answer-id-1314' class='answer   answerof-427 ' value='1314'   \/><label for='answer-id-1314' id='answer-label-1314' class=' answer'><span>\u03a4\u03bf \u0391 \u03ad\u03c7\u03b5\u03b9 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03bc\u03ac\u03b6\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf \u0392.<\/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-426'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>\u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 2kg \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 x=8t<sup>2 <\/sup>(S.I). \u03a3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F=48N. \u03a0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03c1\u03b9\u03b2\u03ae \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2:<\/div><input type='hidden' name='question_id[]' id='qID_8' value='426' \/><input type='hidden' id='answerType426' 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-426[]' id='answer-id-1307' class='answer   answerof-426 ' value='1307'   \/><label for='answer-id-1307' id='answer-label-1307' class=' answer'><span>0\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-426[]' id='answer-id-1308' class='answer   answerof-426 ' value='1308'   \/><label for='answer-id-1308' id='answer-label-1308' class=' answer'><span>8\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-426[]' id='answer-id-1309' class='answer   answerof-426 ' value='1309'   \/><label for='answer-id-1309' id='answer-label-1309' class=' answer'><span>16\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-426[]' id='answer-id-1310' class='answer   answerof-426 ' value='1310'   \/><label for='answer-id-1310' id='answer-label-1310' class=' answer'><span>32\u039d<\/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-429'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>\u03a3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b5\u03bc\u03ad\u03bd\u03b1 \u03b4\u03cd\u03bf \u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03c4\u03b1 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd 100\u039d \u03ba\u03b1\u03b9 50\u039d. \u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9, \u03c7\u03c9\u03c1\u03af\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ad\u03c2, \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 12m\/s<sup>2<\/sup>. \u03be\u03b1\u03c6\u03bd\u03b9\u03ba\u03ac \u03c4\u03bf \u03bd\u03ae\u03bc\u03b1, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03c1\u03b1\u03b2\u03ac\u03b5\u03b9 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03bc\u03b5 50\u039d, \u03c3\u03c0\u03ac\u03b5\u03b9. \u03a4\u03cc\u03c4\u03b5 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03ae \u03c4\u03bf\u03c5 \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9:<br \/>\r\n<br \/>\r\n<div id=\"attachment_6403\" style=\"width: 349px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6403\" class=\" wp-image-6403\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-3-1-300x61.jpg\" alt=\"\" width=\"339\" height=\"69\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-3-1-300x61.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-3-1-640x132.jpg 640w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-3-1.jpg 645w\" sizes=\"auto, (max-width: 339px) 100vw, 339px\" \/><p id=\"caption-attachment-6403\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 9<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_9' value='429' \/><input type='hidden' id='answerType429' 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-429[]' id='answer-id-1320' class='answer   answerof-429 ' value='1320'   \/><label for='answer-id-1320' id='answer-label-1320' class=' answer'><span>10m\/s<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-429[]' id='answer-id-1321' class='answer   answerof-429 ' value='1321'   \/><label for='answer-id-1321' id='answer-label-1321' class=' answer'><span>8m\/s<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-429[]' id='answer-id-1322' class='answer   answerof-429 ' value='1322'   \/><label for='answer-id-1322' id='answer-label-1322' class=' answer'><span>6m\/s<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-429[]' id='answer-id-1323' class='answer   answerof-429 ' value='1323'   \/><label for='answer-id-1323' id='answer-label-1323' class=' answer'><span>4m\/s<sup>2<\/sup><\/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-433'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>\u039f \u0393\u03b9\u03ac\u03bd\u03bd\u03b7\u03c2 \u0391\u03bd\u03c4\u03b5\u03c4\u03bf\u03ba\u03bf\u03cd\u03bc\u03c0\u03bf \u03c3\u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03c0\u03ac\u03b8\u03b5\u03b9\u03ac \u03c4\u03bf\u03c5 \u03bd\u03b1 \u03ba\u03b1\u03c1\u03c6\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03bc\u03c0\u03ac\u03bb\u03b1 \u03c3\u03c4\u03bf \u03ba\u03b1\u03bb\u03ac\u03b8\u03b9, \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03bf \u03ac\u03bb\u03bc\u03b1 \u03cd\u03c8\u03bf\u03c5\u03c2 0,8m. \u039f \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ad\u03bc\u03b5\u03b9\u03bd\u03b5 \u03c3\u03c4\u03bf\u03bd \u03b1\u03ad\u03c1\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_10' value='433' \/><input type='hidden' id='answerType433' 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-433[]' id='answer-id-1336' class='answer   answerof-433 ' value='1336'   \/><label for='answer-id-1336' id='answer-label-1336' class=' answer'><span>0,2s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-433[]' id='answer-id-1337' class='answer   answerof-433 ' value='1337'   \/><label for='answer-id-1337' id='answer-label-1337' class=' answer'><span>0,4s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-433[]' id='answer-id-1338' class='answer   answerof-433 ' value='1338'   \/><label for='answer-id-1338' id='answer-label-1338' class=' answer'><span>0,6s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-433[]' id='answer-id-1339' class='answer   answerof-433 ' value='1339'   \/><label for='answer-id-1339' id='answer-label-1339' class=' answer'><span>0,8s<\/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-430'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03bc\u03ac\u03b6\u03b1 10kg \u03ba\u03b1\u03b9 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03bf\u03b9 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 F<sub>1<\/sub>, F<sub>2<\/sub>=60N, F<sub>3<\/sub>=40N \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 W \u03ba\u03b1\u03b9 \u03b7 \u03ba\u03ac\u03b8\u03b5\u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u039d \u03c4\u03bf\u03c5 \u03b4\u03b1\u03c0\u03ad\u03b4\u03bf\u03c5. \u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b4\u03b5\u03be\u03b9\u03ac \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 4m\/s<sup>2<\/sup> . \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_6401\" style=\"width: 269px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6401\" class=\" wp-image-6401\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-5-300x246.jpg\" alt=\"\" width=\"259\" height=\"212\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-5-300x246.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-5.jpg 550w\" sizes=\"auto, (max-width: 259px) 100vw, 259px\" \/><p id=\"caption-attachment-6401\" 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='430' \/><input type='hidden' id='answerType430' 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-430[]' id='answer-id-1324' class='answer   answerof-430 watupro_max_selections-2' value='1324'  onclick='return WatuPRO.maxSelections(430,2, this);' \/><label for='answer-id-1324' id='answer-label-1324' class=' answer'><span>F<sub>1<\/sub>=60N<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-430[]' id='answer-id-1325' class='answer   answerof-430 watupro_max_selections-2' value='1325'  onclick='return WatuPRO.maxSelections(430,2, this);' \/><label for='answer-id-1325' id='answer-label-1325' class=' answer'><span>F<sub>1<\/sub>=100\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-430[]' id='answer-id-1326' class='answer   answerof-430 watupro_max_selections-2' value='1326'  onclick='return WatuPRO.maxSelections(430,2, this);' \/><label for='answer-id-1326' id='answer-label-1326' class=' answer'><span>\u039d=100\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-430[]' id='answer-id-1327' class='answer   answerof-430 watupro_max_selections-2' value='1327'  onclick='return WatuPRO.maxSelections(430,2, this);' \/><label for='answer-id-1327' id='answer-label-1327' class=' answer'><span>\u039d=140\u039d<\/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-432'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>\u03a3\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 45<sup>0<\/sup> \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03ce\u03bc\u03b1 \u03b2\u03ac\u03c1\u03bf\u03c5\u03c2 50\u039d. \u039c\u03af\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F=95N, \u03c0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03c4\u03bf\u03c5 \u03ba\u03b5\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5, \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7\u03bd \u03ba\u03bf\u03c1\u03c5\u03c6\u03ae, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b1\u03c0\u03ad\u03c7\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b2\u03ac\u03c3\u03b7 45m. \u0394\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7\u03bc45=0,7 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd45=07. \u038c\u03c4\u03b1\u03bd \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03ba\u03bf\u03c1\u03c5\u03c6\u03ae \u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9:<br \/>\r\n<br \/>\r\n<div id=\"attachment_6407\" style=\"width: 259px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6407\" class=\" wp-image-6407\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-7-284x300.jpg\" alt=\"\" width=\"249\" height=\"263\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-7-284x300.jpg 284w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-7.jpg 440w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/><p id=\"caption-attachment-6407\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 12<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_12' value='432' \/><input type='hidden' id='answerType432' 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-432[]' id='answer-id-1332' class='answer   answerof-432 ' value='1332'   \/><label for='answer-id-1332' id='answer-label-1332' class=' answer'><span>24m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-432[]' id='answer-id-1333' class='answer   answerof-432 ' value='1333'   \/><label for='answer-id-1333' id='answer-label-1333' class=' answer'><span>32m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-432[]' id='answer-id-1334' class='answer   answerof-432 ' value='1334'   \/><label for='answer-id-1334' id='answer-label-1334' class=' answer'><span>35m\/s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-432[]' id='answer-id-1335' class='answer   answerof-432 ' value='1335'   \/><label for='answer-id-1335' id='answer-label-1335' class=' answer'><span>42m\/s<\/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-434'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>\u03a3\u03b5 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03b8\u03b5\u03af \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1, \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c3\u03ce\u03bc\u03b1, \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_13' value='434' \/><input type='hidden' id='answerType434' 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-434[]' id='answer-id-1340' class='answer   answerof-434 ' value='1340'   \/><label for='answer-id-1340' id='answer-label-1340' class=' answer'><span>\u038a\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-434[]' id='answer-id-1341' class='answer   answerof-434 ' value='1341'   \/><label for='answer-id-1341' id='answer-label-1341' class=' answer'><span>\u039c\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-434[]' id='answer-id-1342' class='answer   answerof-434 ' value='1342'   \/><label for='answer-id-1342' id='answer-label-1342' class=' answer'><span>\u039c\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-434[]' id='answer-id-1343' class='answer   answerof-434 ' value='1343'   \/><label for='answer-id-1343' id='answer-label-1343' class=' answer'><span>\u039f\u03c4\u03b9\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9, \u03b3\u03b9\u03b1\u03c4\u03af \u03b5\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c6\u03cd\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c4\u03c1\u03b9\u03b2\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03ce\u03bd.<\/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-435'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>\u03a3\u03b5 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 40kg \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bc\u03b5 \u03bc\u03af\u03b1 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b7 \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ae \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b8\u03ad\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7. \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03bf\u03c1\u03b9\u03b1\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 0,4 \u03ba\u03b1\u03b9 \u03bf \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 0,2. \u0391\u03bd \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1, \u03c4\u03cc\u03c4\u03b5 \u03b8\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03b8\u03b5\u03af \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7:<\/div><input type='hidden' name='question_id[]' id='qID_14' value='435' \/><input type='hidden' id='answerType435' 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-435[]' id='answer-id-1344' class='answer   answerof-435 ' value='1344'   \/><label for='answer-id-1344' id='answer-label-1344' class=' answer'><span>2m\/s<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-435[]' id='answer-id-1345' class='answer   answerof-435 ' value='1345'   \/><label for='answer-id-1345' id='answer-label-1345' class=' answer'><span>3m\/s<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-435[]' id='answer-id-1346' class='answer   answerof-435 ' value='1346'   \/><label for='answer-id-1346' id='answer-label-1346' class=' answer'><span>4m\/s<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-435[]' id='answer-id-1347' class='answer   answerof-435 ' value='1347'   \/><label for='answer-id-1347' id='answer-label-1347' class=' answer'><span>5m\/s<sup>2<\/sup><\/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-436'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>\u0388\u03bd\u03b1 \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03bc\u03ac\u03b6\u03b1\u03c2 150kg \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1. \u039f\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03bf\u03c1\u03b9\u03b1\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b1 0,5 \u03ba\u03b1\u03b9 0,4. \u0391\u03bd \u03b4\u03cd\u03bf \u03b5\u03c1\u03b3\u03ac\u03c4\u03b5\u03c2 \u03c3\u03c0\u03c1\u03ce\u03c7\u03bd\u03bf\u03c5\u03bd \u03c4\u03bf \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03bc\u03b5 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 500\u039d, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_15' value='436' \/><input type='hidden' id='answerType436' 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-436[]' id='answer-id-1348' class='answer   answerof-436 ' value='1348'   \/><label for='answer-id-1348' id='answer-label-1348' class=' answer'><span>1500\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-436[]' id='answer-id-1349' class='answer   answerof-436 ' value='1349'   \/><label for='answer-id-1349' id='answer-label-1349' class=' answer'><span>750\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-436[]' id='answer-id-1350' class='answer   answerof-436 ' value='1350'   \/><label for='answer-id-1350' id='answer-label-1350' class=' answer'><span>600\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-436[]' id='answer-id-1351' class='answer   answerof-436 ' value='1351'   \/><label for='answer-id-1351' id='answer-label-1351' class=' answer'><span>500\u039d<\/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-431'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03ba\u03bf\u03c5\u03bc\u03c0\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u0391 \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bc\u03ad\u03bd\u03bf \u03bc\u03b5 \u03bd\u03ae\u03bc\u03b1 \u03c3\u03c4\u03bf \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03bf \u03c4\u03bf\u03af\u03c7\u03bf. \u0391\u03c3\u03ba\u03bf\u03cd\u03bc\u03b5 \u03c3\u03c4\u03bf \u0391 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03ba\u03b9\u03bd\u03bf\u03cd\u03bc\u03b5 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b4\u03b5\u03be\u03b9\u03ac \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7, \u03b5\u03bd\u03ce \u03c4\u03bf \u0392 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03bf\u03c5 \u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c4\u03bf \u03c3\u03c5\u03b3\u03ba\u03c1\u03b1\u03c4\u03b5\u03af. \u0391\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03c4\u03c1\u03b9\u03b2\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 \u0391 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03b4\u03b1\u03c0\u03ad\u03b4\u03bf\u03c5 \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 \u0391 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u0392, \u03c0\u03bf\u03b9\u03b1 \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\u03ae;<br \/>\r\n<br \/>\r\n<div id=\"attachment_6404\" style=\"width: 353px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6404\" class=\" wp-image-6404\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-4-300x126.jpg\" alt=\"\" width=\"343\" height=\"144\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-4-300x126.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2018\/04\/Online-4.jpg 553w\" sizes=\"auto, (max-width: 343px) 100vw, 343px\" \/><p id=\"caption-attachment-6404\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 16<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_16' value='431' \/><input type='hidden' id='answerType431' 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-431[]' id='answer-id-1328' class='answer   answerof-431 ' value='1328'   \/><label for='answer-id-1328' id='answer-label-1328' class=' answer'><span>\u0397 F \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ad\u03c4\u03c1\u03bf \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03ac\u03c3\u03b7 F<sub>T<\/sub>.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-431[]' id='answer-id-1329' class='answer   answerof-431 ' value='1329'   \/><label for='answer-id-1329' id='answer-label-1329' class=' answer'><span>\u0397 \u03c4\u03ac\u03c3\u03b7 F<sub>T<\/sub> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ad\u03c4\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd F.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-431[]' id='answer-id-1330' class='answer   answerof-431 ' value='1330'   \/><label for='answer-id-1330' id='answer-label-1330' class=' answer'><span>\u0397 F \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ad\u03c4\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c4\u03ac\u03c3\u03b7 F<sub>T<\/sub>.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-431[]' id='answer-id-1331' class='answer   answerof-431 ' value='1331'   \/><label for='answer-id-1331' id='answer-label-1331' class=' answer'><span>\u0394\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03bd\u03b3\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd F \u03bc\u03b5 \u03c4\u03b7\u03bd  F<sub>T<\/sub> \u03b3\u03b9\u03b1\u03c4\u03af \u03b4\u03b5 \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03bc\u03ac\u03b6\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ad\u03c2.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-17' style=';'><div id='questionWrap-17'  class='   watupro-question-id-437'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>\u03a3\u03c0\u03c1\u03ce\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03bc\u03ac\u03b6\u03b1\u03c2 50kg \u03c3\u03c4\u03bf \u03c0\u03ac\u03c4\u03c9\u03bc\u03b1 \u03ba\u03b1\u03c4\u03ac 15m \u03bc\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 300\u039d. \u0391\u03bd \u03bf \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 0,2, \u03c0\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_17' value='437' \/><input type='hidden' id='answerType437' 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-437[]' id='answer-id-1352' class='answer   answerof-437 watupro_max_selections-3' value='1352'  onclick='return WatuPRO.maxSelections(437,3, this);' \/><label for='answer-id-1352' id='answer-label-1352' class=' answer'><span>\u03a3\u03c4\u03bf \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03ad\u03c1\u03b3\u03bf 4500J.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-437[]' id='answer-id-1353' class='answer   answerof-437 watupro_max_selections-3' value='1353'  onclick='return WatuPRO.maxSelections(437,3, this);' \/><label for='answer-id-1353' id='answer-label-1353' class=' answer'><span>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03ad\u03c1\u03b3\u03bf 1500J.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-437[]' id='answer-id-1354' class='answer   answerof-437 watupro_max_selections-3' value='1354'  onclick='return WatuPRO.maxSelections(437,3, this);' \/><label for='answer-id-1354' id='answer-label-1354' class=' answer'><span>\u03a4\u03bf \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-437[]' id='answer-id-1355' class='answer   answerof-437 watupro_max_selections-3' value='1355'  onclick='return WatuPRO.maxSelections(437,3, this);' \/><label for='answer-id-1355' id='answer-label-1355' class=' answer'><span>\u03a0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03ad\u03c1\u03b3\u03bf 3000J \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03b9 \u03c4\u03bf \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-18' style=';'><div id='questionWrap-18'  class='   watupro-question-id-438'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>\u0394\u03cd\u03bf \u03b4\u03af\u03b4\u03c5\u03bc\u03b1 \u03b1\u03b4\u03ad\u03c1\u03c6\u03b9\u03b1, \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c4\u03b7\u03c2 \u03af\u03b4\u03b9\u03b1\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2, \u03b1\u03bd\u03b5\u03b2\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1\u03bd \u03bb\u03cc\u03c6\u03bf \u03cd\u03c8\u03bf\u03c5\u03c2 900m. \u039f \u03c0\u03c1\u03ce\u03c4\u03bf\u03c2, \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03b5\u03af \u03ad\u03bd\u03b1\u03bd \u03b1\u03bd\u03b7\u03c6\u03bf\u03c1\u03b9\u03ba\u03cc \u03b4\u03c1\u03cc\u03bc\u03bf \u03bc\u03b5 \u03ba\u03bb\u03af\u03c3\u03b7 10<sup>0<\/sup> \u03ba\u03b1\u03b9 \u03bf \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2 \u03b4\u03c1\u03cc\u03bc\u03bf \u03ba\u03bb\u03af\u03c3\u03b7\u03c2 20<sup>0<\/sup>. \u03a0\u03bf\u03b9\u03b1 \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\u03ae;<\/div><input type='hidden' name='question_id[]' id='qID_18' value='438' \/><input type='hidden' id='answerType438' 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-438[]' id='answer-id-1356' class='answer   answerof-438 ' value='1356'   \/><label for='answer-id-1356' id='answer-label-1356' class=' answer'><span>\u039a\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03b1\u03b4\u03ad\u03c1\u03c6\u03b9\u03b1 \u03b8\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03ad\u03c1\u03b3\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-438[]' id='answer-id-1357' class='answer   answerof-438 ' value='1357'   \/><label for='answer-id-1357' id='answer-label-1357' class=' answer'><span>\u039f \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2, \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b4\u03c1\u03cc\u03bc\u03bf \u03ba\u03bb\u03af\u03c3\u03b7\u03c2 20<sup>0<\/sup>, \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03ad\u03c1\u03b3\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-438[]' id='answer-id-1358' class='answer   answerof-438 ' value='1358'   \/><label for='answer-id-1358' id='answer-label-1358' class=' answer'><span>\u039f \u03c0\u03c1\u03ce\u03c4\u03bf\u03c2, \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b4\u03c1\u03cc\u03bc\u03bf \u03ba\u03bb\u03af\u03c3\u03b7\u03c2 10<sup>0<\/sup>, \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03ad\u03c1\u03b3\u03bf, \u03b3\u03b9\u03b1\u03c4\u03af \u03ba\u03ac\u03bd\u03b5\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-438[]' id='answer-id-1359' class='answer   answerof-438 ' value='1359'   \/><label for='answer-id-1359' id='answer-label-1359' class=' answer'><span>\u0394\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03ad\u03c1\u03b3\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03ba\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd, \u03b3\u03b9\u03b1\u03c4\u03af \u03b4\u03b5 \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03ba\u03c1\u03b1\u03c4\u03bf\u03cd\u03bd \u03c3\u03c4\u03bf \u03b4\u03c1\u03cc\u03bc\u03bf (\u03c4\u03c1\u03b1\u03c7\u03b5\u03af\u03c2, \u03bc\u03b5 \u03b5\u03bc\u03c0\u03cc\u03b4\u03b9\u03b1 \u03ba\u03c4\u03bb).<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-19' style=';'><div id='questionWrap-19'  class='   watupro-question-id-439'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>\u0395\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 \u03bc\u03af\u03b1 \u03ba\u03b9\u03ba\u03c1\u03ae \u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03ae \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 3kg. \u0397 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b1\u03bd\u03b5\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03c3\u03b5 \u03cd\u03c8\u03bf\u03c2 3m \u03ba\u03b1\u03b9 \u03c0\u03ad\u03c6\u03c4\u03b5\u03b9 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\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_19' value='439' \/><input type='hidden' id='answerType439' 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-439[]' id='answer-id-1360' class='answer   answerof-439 watupro_max_selections-2' value='1360'  onclick='return WatuPRO.maxSelections(439,2, this);' \/><label for='answer-id-1360' id='answer-label-1360' class=' answer'><span>\u039a\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03ac\u03bd\u03bf\u03b4\u03bf \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9 \u03ad\u03c1\u03b3\u03bf 300J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-439[]' id='answer-id-1361' class='answer   answerof-439 watupro_max_selections-2' value='1361'  onclick='return WatuPRO.maxSelections(439,2, this);' \/><label for='answer-id-1361' id='answer-label-1361' class=' answer'><span>\u0397 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03b7 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03c3\u03c4\u03bf \u03b1\u03bd\u03ce\u03c4\u03b1\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 900J.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-439[]' id='answer-id-1362' class='answer   answerof-439 watupro_max_selections-2' value='1362'  onclick='return WatuPRO.maxSelections(439,2, this);' \/><label for='answer-id-1362' id='answer-label-1362' class=' answer'><span>\u038c\u03c4\u03b1\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c6\u03b5\u03b9 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2 \u03c4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03bf\u03c5 \u03b2\u03ac\u03c1\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 900J.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-439[]' id='answer-id-1363' class='answer   answerof-439 watupro_max_selections-2' value='1363'  onclick='return WatuPRO.maxSelections(439,2, this);' \/><label for='answer-id-1363' id='answer-label-1363' class=' answer'><span>\u0397 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03ba\u03c4\u03c5\u03c0\u03ac\u03b5\u03b9 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2 \u03cc\u03c4\u03b1\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c6\u03b5\u03b9 \u03b7 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 30m\/s.<\/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-440'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>\u0397 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \u039a \u03c3\u03b5 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03cd\u03c8\u03bf\u03c2 y, \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03ad\u03c6\u03c4\u03b5\u03b9 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2, \u03b4\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \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-8cff5c158a5e9a0090448524a4f72a59_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;&#75;&#61;&#54;&#55;&#53;&middot;&#45;&#54;&#48;&#121;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"108\" style=\"vertical-align: -3px;\"\/> (SI). \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_20' value='440' \/><input type='hidden' id='answerType440' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div id='watuproFlashcard-1364' onclick=\"WatuPROFlipCard('1364');\" 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;'>\u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>60J<\/div><\/div><div id='watuproFlashcard-1365' onclick=\"WatuPROFlipCard('1365');\" 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;'>\u039c\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf \u03cd\u03c8\u03bf\u03c2<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>8m<\/div><\/div><div id='watuproFlashcard-1366' onclick=\"WatuPROFlipCard('1366');\" 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;'>\u039c\u03ac\u03b6\u03b1 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>6kg<\/div><\/div><div id='watuproFlashcard-1367' onclick=\"WatuPROFlipCard('1367');\" 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\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c0\u03c4\u03ce\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>15m\/s<\/div><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-440[]' id='answer-id-1364' class='answer   answerof-440 ' value='1364'   \/><label for='answer-id-1364' id='answer-label-1364' class=' answer'><span>\u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1=60J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-440[]' id='answer-id-1365' class='answer   answerof-440 ' value='1365'   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