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14．用如图所示的装置验证碰撞中的动量守恒定律图中mn是一个竖直放置的木板木板上依次固定有白纸和复写纸其实验步骤如下 A．用天平测量 Template






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tomski14．用如图所示的装置验证碰撞中的动量守恒定律图中mn是一个竖直放置的木板木板上依次固定有白纸和复写纸其实验步骤如下 a．用天平测量 coloring
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题目用如图所示的装置可以验证动量守恒定律1实验中质量为m1的入射小球和质量为m2的被碰小球的质量关系是m1 M2选填“大于 sketch template
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某同学设计了如图1所示的装置来探究加速度与力的关系．弹簧秤固定在一块合适的木板上桌面的右边缘固定一支表面光的铅笔以代替定轮细绳的两端 sketch template
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30．如图所示用轮组提起重G的物体绳子自由端拉力为F重 物以速度勘匀速上升不计擦和绳重则 1轮组的机械效率为 2 sketch template
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如图7甲所示劲度系数为k的轻弹簧竖直放置下端固定在水平地面上一质量为m的小球从离弹簧上端高h处由静止释放落在弹簧上后继续下运动到 sketch template
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使用如图a所示的装置验证机械能守恒定律打出一条纸带如图b所示．图中O是打出的第一个点迹ABCDEF 是依次打出的点迹 sketch template
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14．某同学用如图所示的装置验证动量守恒定律在固定的竖直支架上水平固定一中间开孔的圆管用两小球夹一弹簧置于圆管内通过小孔上拉紧系于两球 sketch template
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题目某同学用如图所示的装置 “验证机械能守恒定律 实验的主要步骤如下调整气垫导轨使之水平气垫导轨所在桌面足够高用天平测量块 sketch template
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14．如图是验证阿基米德原理的实验示意图从图说明浸没在液体中的物体受到的 的浮力从说明浮力的大小等于 若物体只浸入液体中一部分则上述 sketch template
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实验分析：某同学用如图所示的实验装置测量小车从斜面顶部自由下时的平均速度，并将测得的几项数据填入下表． 百度教育 sketch template
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11．如图2 9所示一轻质三角形框架B处悬挂一定轮．一体重为500N的人通过跨定轮的轻绳匀速提起一重为300N的物体． 1此时人对 sketch template
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叠放木块的受力图示叠放两木块的力图叠放木块的力分析图 大山谷图库 sketch template
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