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Calculate the work done and the final temperature for the following processes:
a. Polytropic, n = 1.1, 4.0 lbm of Air, T1 = 1300 °F, v1=6.519 ft3/lbm. The pressure decreases to half the initial pressure during the process.
b. Polytropic, n = 1.0, 4.0 lbm of Air, T1 = 1300 °F, v1=6.519 ft3/lbm. The pressure decreases to half the initial pressure during the process.
c. Polytropic, n = 1.4, 4.0 lbm of Air, T1 = 1300 °F, v1=6.519 ft3/lbm. The pressure decreases to half the initial pressure during the process.
a hockey player strikes the 0.25 kg puck with an impulse force given by ft 100sin50t n for the duration of 0.04pi
Calculate the concentration (in weight percent) of molybdenum that must be added to tungsten to yield an alloy that contains 1.51 x 1022 Mo atoms per cubic centimeter.
A power plant with one closed FWH has a con- denser temperature of 450C, a maximum pressure of 5 MPa, and a boiler exit temperature of 900C. Extraction steam at 1 MPa to the FWH condenses and is pumped up to the 5-MPa feed water line, where all the w..
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