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href="/question?tree_type=category&xd=3&chid=6" class="pointer">高中物理</a> <span>/</span> <a href="javascript:;">多選題</a> </div> <div id="6o6oebl" class="m-wrap g-cw cfx"> <div id="kxtjrc0" class="w fl"> <div id="oo7uvyr" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="glrrzcv" class="question-block"> <div id="qfaaqav" class="q-mc"> <h1 class="q-tit"> 1. <a href="javascript:;" class="ques-origin " target="_self"> (2017高三上·河南開學(xué)考) </a> 如圖所示，輕質(zhì)不可伸長(zhǎng)的晾衣繩兩端分別固定在豎直桿M、N上的a、b兩點(diǎn)，懸掛衣服的衣架鉤是光滑的，掛于繩上處于靜止?fàn)顟B(tài)．如果只人為改變一個(gè)條件，當(dāng)衣架靜止時(shí)，下列說(shuō)法正確的是（　　）<p><img width="156" height="129" src="http://tikupic.21cnjy.com/22/87/22875c707219f850157bfd976cc837c4.png" style="max-width:100%;"></p> </h1> <div id="q3v7l3d" class="exam-s"> <span id="e6aspje" class="op-item"><span id="0rktanx" class="op-item-nut">A . </span><span id="c26on94" class="op-item-meat">繩的右端上移到b′，繩子拉力不變</span></span> <span id="ojucxso" class="op-item"><span id="qcnmumv" class="op-item-nut">B . </span><span id="xxc6cql" class="op-item-meat">將桿N向右移一些，繩子拉力變大</span></span> <span id="agpy9wd" class="op-item"><span id="pwacq5t" class="op-item-nut">C . </span><span id="aej3bzn" class="op-item-meat">繩的兩端高度差越小，繩子拉力越小</span></span> <span id="fkvgvpr" class="op-item"><span id="xdvpwfb" class="op-item-nut">D . </span><span id="xlp2nlc" class="op-item-meat">若換掛質(zhì)量更大的衣服，則衣服架懸掛點(diǎn)右移</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="mmwy3ij" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="tpaipps" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=5707827" width="140px" height="140px" alt=""> <p style="text-align:center;margin-top: 10px">微信掃碼預(yù)覽、分享更方便</p> </div> <div id="yx7iytu" class="analyize-extend JV_question__papers"> <h3 class="extend-mt">使用過(guò)本題的試卷</h3> <ul class="extend-mc"> <li> <a href="/paper/view-450780.shtml" target="_blank" title="備考2018年高考物理一輪基礎(chǔ)復(fù)習(xí)：專題6 共點(diǎn)力的合成與分解" class="ex-tit"> <b></b><span>備考2018年高考物理一輪基礎(chǔ)復(fù)習(xí)：專題6 共點(diǎn)力的合成與分解</span> </a> </li> </ul> </div>  <div id="jqsrpux" class="JV_question__subject"> <ul class="subjects-recomm"> <li> <a href="/merge?id=394" target="_blank"> <img src="https://tikupic.21cnjy.com/2024/11/13/76/a7/76a76e6216d40a4b182e08db669f4e9c.jpg"> </a> </li> <li> <a href="/merge?id=390" target="_blank"> <img src="https://tikupic.21cnjy.com/2024/09/29/ed/45/ed453a7e6f57e01cc4f6f1bd955a6a1c.jpg"> </a> </li> <li> <a href="/merge?id=388" target="_blank"> <img src="https://tikupic.21cnjy.com/2024/09/24/4a/da/4ada51dc83cb91069cbe14038588a3c6.jpg"> </a> </li> </ul> </div> </div> </div> <div id="w2h8ns3" class="inner-footer"> <div id="5tibjlg" class="g-cw"> <div id="nnvnv1i" class="footer-adress"> <P>2006-2025 深圳市思高達(dá)科技有限公司 <a ref='nofollow'>粵ICP備14099982號(hào) </a> <a target="_blank" >粵公網(wǎng)安備 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