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(6.II) Two small identical metal spheres are 3 cm apart and
attract each other with a force of 150 N. They are momen-
tarily connected by a wire. (a) Find the original charges if
they now repel each other with a force of 10 N. (Assume
the charge on each sphere is uniformly distributed.) (b)
Find the original charges if the magnitude of the repulsive
force is 150 N.

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