A well has been pumped at a steady rate for a very long time. The well has a 12-inch diameter and fully penetrates an unconfined aquifer that is 160 feet thick. Two small observation wells are 60 feet and 100 feet from the well, and the corresponding observed drawdawn are 39 and 18 feet. If the estimated hydraulic conductivity is 13 ft/day, what is the discharge?

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.