1. Five conducting spheres of similar size and shape, having charge 9.0 nC, +1.0 nC, +3.0 nC, 5.0 nC, and 0 C, are placed inside of a closed neutral box made of an insulating material such that no charge can transfer between a sphere and the box. The box is shook for several minutes such that the spheres make multiple collisions with each other. What is the charge on each object at the end of this experiment? (1) 2 DC (2) 10 DC (3) 2.5 HC (4) 5 DC (5) 0 C