A 0.2 kg hockey puck undergoes a slap shot moving 14 m/s to the left side of the goal. The goalie moves to stop the puck at 3 m/s to the left also. The goalie saves and blocks the shot and the puck collides into a
1.5 kg glove of the goalie and the glove with the puck both continue moving to the left. Calculate the
velocity of the glove and puck moving immediately after the collision.

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.