A golf ball is spinning in the air at a rate of 3000 rpm. If it hits the ground and comes to a stop with an average acceleration of -4000 rad/s2, what is the angular displacement of the golf ball? A. -1125 radians
B. -0.375 radians
C. -12.3 radians
D. Not enough information

Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s