聪明人进来看看?固定正电荷A,带电量为Q=1X10^-5库伦,点电荷B从距A无穷远的电势为零处移到距A为3cm、电势为3000V的P点,电场力做负功为1.8X10^-5库伦.若把B点电荷从P点由静止释放,释放瞬间加速度
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![聪明人进来看看?固定正电荷A,带电量为Q=1X10^-5库伦,点电荷B从距A无穷远的电势为零处移到距A为3cm、电势为3000V的P点,电场力做负功为1.8X10^-5库伦.若把B点电荷从P点由静止释放,释放瞬间加速度](/uploads/image/z/5453744-32-4.jpg?t=%E8%81%AA%E6%98%8E%E4%BA%BA%E8%BF%9B%E6%9D%A5%E7%9C%8B%E7%9C%8B%3F%E5%9B%BA%E5%AE%9A%E6%AD%A3%E7%94%B5%E8%8D%B7A%2C%E5%B8%A6%E7%94%B5%E9%87%8F%E4%B8%BAQ%3D1X10%5E-5%E5%BA%93%E4%BC%A6%2C%E7%82%B9%E7%94%B5%E8%8D%B7B%E4%BB%8E%E8%B7%9DA%E6%97%A0%E7%A9%B7%E8%BF%9C%E7%9A%84%E7%94%B5%E5%8A%BF%E4%B8%BA%E9%9B%B6%E5%A4%84%E7%A7%BB%E5%88%B0%E8%B7%9DA%E4%B8%BA3cm%E3%80%81%E7%94%B5%E5%8A%BF%E4%B8%BA3000V%E7%9A%84P%E7%82%B9%2C%E7%94%B5%E5%9C%BA%E5%8A%9B%E5%81%9A%E8%B4%9F%E5%8A%9F%E4%B8%BA1.8X10%5E-5%E5%BA%93%E4%BC%A6.%E8%8B%A5%E6%8A%8AB%E7%82%B9%E7%94%B5%E8%8D%B7%E4%BB%8EP%E7%82%B9%E7%94%B1%E9%9D%99%E6%AD%A2%E9%87%8A%E6%94%BE%2C%E9%87%8A%E6%94%BE%E7%9E%AC%E9%97%B4%E5%8A%A0%E9%80%9F%E5%BA%A6)
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