Collars and slide without friction along the fixed rods and are connected by a slender bar of length . Collar has a speed to the right. (a) Clearly designate datums and mark the positions and of collars and along the rods. How does relate to (b) Express the speed of in terms of , , and . Hint to check your W

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.