A particle of charge +2.49 x 10"5 C is 9.88 cm distant from a second particle of charge -1.20 x 10"5 C. Calculate the magnitude of the electrostatic force between the particles. Two identical conducting spheres, xed in place, attract each other with an electrostatic force of 0.130 N when their center-to-center separation is 69.2 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 0.0428 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.) (3) Number I Units v (b) Number I Units v