Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. While a negatively charged rod is held near, but not touching sphere A, someone moves ball B away from A. How will the spheres be charged, if at all?    A. 0, + B. –, + C. –, 0 D. +, –

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Q: #2 with explanation

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Q: what is the force between the spheres?

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