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Physics, 15.07.2019 19:20 vege

Two ping-pong balls each have a mass of 2.7 g and carry a net charge of 0.470 μc . one ball is held fixed. part a part complete at what height should the second ball be placed directly above the fixed ball if it is to remain at rest there?

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Two ping-pong balls each have a mass of 2.7 g and carry a net charge of 0.470 μc . one ball is held...
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