Acar's position in relation to time is plotted on the graph. what can be said about the car during segment b? a) the car travels for 80 seconds during segment b. b) the car has come to a stop and has zero velocity. c) the car is traveling faster during segment b than in segment c. d) the car is traveling with a constant velocity due to the flat line of the graph.

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.