Two identical conducting spheres, fixed in place, attract each other with an ele

Question

Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.0931 N when their center-to-center separation is 68.0 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0447 N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge in coulombs on one of them and (b) the positive charge in coulombs on the other? Please help. Thanks

Explanation / Answer

first find q1*q2 from attractive force

then after joining

v1=v2 v=potential

and solve of q1 &q2

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