A firecracker is at rest on a frictionless horizontal table. The firecracker explodes into two pieces of unequal mass that move in opposite directions on the table. 1) Is the change in momentum zero in this problem? 2)Is the change in kinetic energy zero in this problem? 3)The heavier piece moves to the left with some velocity. Describe the motion of the other piece. 4) Compare the magnitude of momentum of the heavier piece to the lighter piece. 5) Compare the kinetic energy of the heavier piece to the lighter piece.