Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.0844 n when their center-to-center separation is 72.1 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 0.0328 n. of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on one of them and (b) the positive charge on the other? (assume the negative charge has smaller magnitude.)