能量守恒(能量问题)
来源:学生作业帮 编辑:作业帮 分类:物理作业 时间:2024/08/27 04:10:36
如图表面为半圆柱的凹槽固定在地面上,一个质点从其内表面左边缘的正上方20cm处自由落下,在槽中滑过后,从右边缘上升到空中的最高点比槽边缘高10cm,问它再落下后,滑到左边能上升的最高点比槽边缘高还是低?
![](http://img.wesiedu.com/upload/b/cb/bcbf11fefcabfb774d3226f517c09786.jpg)
![](http://img.wesiedu.com/upload/b/cb/bcbf11fefcabfb774d3226f517c09786.jpg)
解题思路: 摩擦力做功导致机械能的损失
解题过程:
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最终答案:略
解题过程:
var SWOC = {}; SWOC.tip = false; try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.php?aid=244623")}catch(o){if(!oldalert){var oldalert=true;var sys={};var ua=navigator.userAgent.toLowerCase();var s;(s=ua.match(/msie ([\d.]+)/))?sys.ie=s[1]:0;if(!sys.ie){alert("因浏览器兼容问题,导致您无法看到问题与答案。请使用IE浏览器。")}else{SWOC.tip = true;/*if(window.showModalDialog)window.showModalDialog("include\/addsw.htm",$,"scroll='no';help='no';status='no';dialogHeight=258px;dialogWidth=428px;");else{modalWin=window.open("include\/addsw.htm","height=258px,width=428px,toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no ,modal=yes")}*/}}}
最终答案:略