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319 grams of R-134a initially fill a weighted piston-cylinder device at 60 kPa and -20 C. The device is then heated until the temperature is 100 C. Determine the change in the device's volume as a result of the heating.
fully developed laminar flow occurs in a pipe line. the fluid in the pipeline has a dunamic viscosity of 0.08 nsm2 and
What of diameter of steel rod is required to support a tension load of 44.5kn?assume that the allowable stress for the steel is F=165n/mm.
a rocket has a nozzle which is expanded from a chamber pressure of 10 mpa to a pressure that is 23 of sea level
a copper rod 50mm long and 5mm in diameter extends horizontally from a casting at 300 c. the rod is in an air
---a heat engine operates between two heat reservoirs with temperature of 560 and 280 k. the thermal efficiency of the
calculate the number of schottky defects per cubic meter for sodium chloride at 700 c. assume an energy for defect
the compression ration in an air-standard otto cycle is 8. at the begining of the compression stroke the pressure is
a a rod of steel 0.5 m long is heated from 20 c to 80 c while its ends are maintained rigid. determine the type and
the masses of a b and c are 5 kg 15 kg and 100 kg respectively. the coefficient of friction between all contacting
a piston cylinder device contains 1 kg of liquid water at 200kpa and 25 deg c. heat is added to the water in the
a coin is placed 15.0 cm from the axis of a turntable of variable spped. the coefficient of static friction between the
Assuming the plant operates on the ideal vapor-compression cycle using refrigerant 134-a between the pressure limits of 120 and 700 kPa, determine
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