1. The problem statement, all variables and given/known data Two small spheres of charge 10Q each separated by a distance d repel each other with a force F. In terms of F what would be the new repulsive force if 2Q were removed from one sphere and added to the other? 2. Relevant equations F = kQq/r^2 3. The attempt at a solution F = k(10Q)(10Q)/d^2 if 2Q were removed.... F = k(12Q)(8Q)/d^2 Is that the answer? it seems too easy Thanks for any input!