Calculate the expectation values hxi, hx 2 i, hpi and hp 2 i for all states (i. e. your answer for each expectation value will be a function of n). Briefly describe the physical meaning of the hxi and hpi results.

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving