质量M=1.0*10^-4kg的小球放在绝缘的水平面上,小球带电荷量q=2.0*10^-4C,小球与水平面间的动摩擦因素μ=0.2,外加水平向右的匀强电场E=5V/M,垂直纸面向外的匀强磁场B=2T,小球从静止开始运动.问1:小
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![质量M=1.0*10^-4kg的小球放在绝缘的水平面上,小球带电荷量q=2.0*10^-4C,小球与水平面间的动摩擦因素μ=0.2,外加水平向右的匀强电场E=5V/M,垂直纸面向外的匀强磁场B=2T,小球从静止开始运动.问1:小](/uploads/image/z/5529161-65-1.jpg?t=%E8%B4%A8%E9%87%8FM%3D1.0%2A10%5E-4kg%E7%9A%84%E5%B0%8F%E7%90%83%E6%94%BE%E5%9C%A8%E7%BB%9D%E7%BC%98%E7%9A%84%E6%B0%B4%E5%B9%B3%E9%9D%A2%E4%B8%8A%2C%E5%B0%8F%E7%90%83%E5%B8%A6%E7%94%B5%E8%8D%B7%E9%87%8Fq%3D2.0%2A10%5E-4C%2C%E5%B0%8F%E7%90%83%E4%B8%8E%E6%B0%B4%E5%B9%B3%E9%9D%A2%E9%97%B4%E7%9A%84%E5%8A%A8%E6%91%A9%E6%93%A6%E5%9B%A0%E7%B4%A0%CE%BC%3D0.2%2C%E5%A4%96%E5%8A%A0%E6%B0%B4%E5%B9%B3%E5%90%91%E5%8F%B3%E7%9A%84%E5%8C%80%E5%BC%BA%E7%94%B5%E5%9C%BAE%3D5V%2FM%2C%E5%9E%82%E7%9B%B4%E7%BA%B8%E9%9D%A2%E5%90%91%E5%A4%96%E7%9A%84%E5%8C%80%E5%BC%BA%E7%A3%81%E5%9C%BAB%3D2T%2C%E5%B0%8F%E7%90%83%E4%BB%8E%E9%9D%99%E6%AD%A2%E5%BC%80%E5%A7%8B%E8%BF%90%E5%8A%A8.%E9%97%AE1%EF%BC%9A%E5%B0%8F)
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