题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031150-46949.jpg)
图6-10
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031150-25274.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031150-62418.gif)
mg
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031150-62418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031150-62418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031150-25274.gif)
核心考点
试题【如图6-10所示,一粗细均匀的U形管内装有同种液体竖直放置,右管口用盖板A密闭一部分气体,左管口开口,两液面高度差为h,U形管中液柱总长为 4h,去盖板,液体开】;主要考察你对机械能守恒及其条件等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031142-85996.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031142-16643.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031142-32042.gif)
(1)A经过Q点时速度的大小
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031142-14991.gif)
(2)A与B碰后速度的大小
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031143-16002.gif)
(3)碰撞过程中系统(A、B)损失的机械能
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031143-51816.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031143-16867.jpg)
(1)子弹射入木块与木块获得的共同速率;
(2)子弹射入后与木块在圆弧轨道上升的最大高度;
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031131-27402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031132-27038.jpg)
如图13所示,水上滑梯由斜槽AB和水平槽BC构成,AB与BC圆滑连接,斜槽的竖直高度
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031125-53584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031125-44514.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031126-72753.gif)
(1)若忽略游戏者下滑过程中受到的一切阻力,求游戏者从斜槽顶端A点由静止滑下到斜槽底端B点的速度大小;
(2)若由于阻力的作用,游戏者从滑
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031126-48520.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031126-58811.gif)
(3)若游戏者滑到滑梯末端C点以
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031126-58811.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031126-98436.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-41825.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-65253.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-18533.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031117-83066.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031117-64988.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031117-27091.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-65253.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031117-62292.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-65253.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-65253.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-41825.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031118-67188.jpg)
(1)求物块
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
(2)若使物块
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-65253.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-95373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031118-58521.gif)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031118-14739.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-41825.gif)
(4)若在(3)中物块
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-41825.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031116-41825.gif)
如图15所示,固定在上、下两层水平面上的平行金属导轨
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031057-77332.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031057-97170.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-40898.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-68678.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-66586.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-89484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-15531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-66586.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-89484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-15531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-66257.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-39791.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-39463.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-12521.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-63762.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-40347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-18867.gif)
(1)已知金属杆与下层导轨间的动摩擦因数为
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-38575.gif)
(2)金属杆运动到
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031059-40347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-99589.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-80881.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-56318.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-37581.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-77261.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-13769.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-39791.gif)
(3)若上层水平导轨足够长,其右端连接的定值电阻阻值为
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031100-72612.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031058-39791.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200109/20200109031101-20883.jpg)
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