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Air enters a compressor with a pressure of 14.7 lbf/in2, a temperature of 70 degrees F, and a volumetric flow rate of 40 ft3/s. Air exits the compressor at 50 lbf/in2 and 190 degrees F. Heat transfer from the compressor to its surroundings occurs at a rate is 20.5 Btu/lb of air flowing. Determine the compressor power, in Horsepower, for steady-state operation.
resolve a vector a which has a magnitude of 50 units and a direction of 210 degrees into two vetors b and c. c is to be
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If the minimum attractive rate of return is20% per year, determine the one machine that should be selected on the basis of a rate of return analysis.
aluminum atoms have a radius of 0.1431 nm and they form into face-centered cubic fcc crystals.a calculate the density
refrigerant 134-a flows through a compressor at a rate of 0.125 kgs. the compressor inlet conditions are 140 kpa and
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