1. Two insulating spheres have radi ri and 2, masses m, and m,, and uniformly distributed charges -q, and q₂. They are released from rest when their centers are separated by a distance d. (a) How fast is each moving when they collide? (Hint: Consider conservation of energy and conservation of linear momentum). (b) if the spheres were conductors, what do you think of their speeds? Will it be greater or less than those calculated in part (a)? Explain.

1. Two insulating spheres have radi ri and 2, masses m, and m,, and uniformly distributed charges -q, and q₂. They are released from rest when their centers are separated by a distance d. (a) How fast is each moving when they collide? (Hint: Consider conservation of energy and conservation of linear momentum). (b) if the spheres were conductors, what do you think of their speeds? Will it be greater or less than those calculated in part (a)? Explain.