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Two negatively charged small metal spheres with -2q and +8q are separated by distance d and...

Two negatively charged small metal spheres with -2q and +8q are separated by distance d and experience an attractive force F initial. You bring the spheres into contact briefly to allow charge to flow in such a way that it uniformly distributes the net charge between them. They are returned to their original separation d. What is the new force between them in terms of F intial?

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