Four identical metal spheres have charges of qA 5 28.0 mC,
Chapter , Problem 4(choose chapter or problem)
Four identical metal spheres have charges of qA 5 28.0 mC, qB 5 22.0 mC, qC 5 15.0 mC, and qD 5 112.0 mC. (a) Two of the spheres are brought together so they touch, and then they are separated. Which spheres are they, if the fi nal charge on each one is 15.0 mC? (b) In a similar manner, which three spheres are brought together and then separated, if the fi nal charge on each of the three is 13.0 mC? (c) The fi nal charge on each of the three separated spheres in part (b) is 13.0 mC. How many electrons would have to be added to one of these spheres to make it electrically neutral?
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