一根足够长的空心铜管竖直放置使一枚直径略小于铜管内径质量为m0的圆柱形强磁铁从管内某处由静止开始下落如图1所示它不会做自由落体运动 Sketch Coloring Page

一根足够长的空心铜管竖直放置使一枚直径略小于铜管内径质量为m0的圆柱形强磁铁从管内某处由静止开始下落如图1所示它不会做自由落体运动 Template

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tomski一根足够长的空心铜管竖直放置使一枚直径略小于铜管内径质量为m0的圆柱形强磁铁从管内某处由静止开始下落如图1所示它不会做自由落体运动 coloring

一根足够长的空心铜管竖直放置使一枚直径略小于铜管内径质量为m0的圆柱形强磁铁从管内某处由静止开始下落如图1所示它不会做自由落体运动 sketch template

一根足够长的空心铜管竖直放置使一枚直径略小于铜管内径质量为m0的圆柱形强磁铁从管内某处由静止开始下落如图1所示它不会做自由落体运动 sketch template

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一根足够长的空心铜管竖直放置使一枚直径略小于铜管内径质量为m0的圆柱形强磁铁从管内某处由静止开始下落如图1所示它不会做自由落体运动 sketch template

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如图所示直棒AB长5m上端为A下端为B．在B的正下方10m处有一长度为5m内径比直棒大得多的固定空心竖直管手持直棒由静止释放让棒做 sketch template

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如图所示有两根与水平方�成α=30°角的光�平行的足够长的�属导轨．�动变阻器接入电路的电阻值为R导轨的宽度L=05m空间有垂直于导轨 sketch template

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百度教育 sketch template

两根足够长的平行光�导轨竖直固定放置顶端接一电阻R导轨所在平面与匀强磁场垂直．将一�属棒与下端固定的轻弹簧的上端拴接�属棒和导轨接触良好 sketch template

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如图所示水平面上有两根足够长的光�平行�属导轨MN和PQ两导轨间距为L电阻均可忽略不计在M和P之间接有阻值为R的定值电阻．导体杆ab sketch template

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