Consider sending a large file of F bits from Host A to Host B. There are three links (and two switches) between A and B. Thelinks are uncongested and there are no queuing delays or processing delays. Host A segments the file intoNequal segments and adds 100 bits of headerto each segment. Suppose links are identical and letd, s, andRdenote thelength, propagation speed, and the transmission rate of each link. Find thedelay of transferring the file from Host A to Host B.

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.