Evaluate each of the following to three significant figures and express each answer in sl units using an appropriate prefix:

a. 354 mg(45 km) / (0.0356 kn),
b. (0.004 53 mg)(201 ms),
c. 435 mn / 23.2 mm,
d. (0.631 mm) / (8.60 kg)2
e. (35mm)2(48kg)3

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.