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Air enters a compressor at 105 kPa and 300 K with a volumetric flow rate of 12 m^3/min and exits at 1200 kPa and 400 K. Heat transfer occurs at a rate of 2 kW from the compressor to its surroundings. Assuming ideal-gas behavior for air, steady flow, and negligible effects of kinetic and potential energy determine the power input (kW) to the compressor.
air expands from 100kpa 40 degrees c with volume .75 m3 to 15kpa in a polytropic process with polytropic exponent n.
a carnival ride is designed to allow the general public to experience high-acceleration motion. the ride rotates about
block a and b weigh 100 lb and 60 lb respectively. if block a has a center of gravity at g as shown determine the
a gas turbine burns natural gas assume methane where the air is supplied to the combustor at 1000 kpa 500 k and the
zoologists estimate that the average adult cheetah can run at a speed of 100 kmhr and that the average antelope can run
steam enters a well insulated nozzle operating at steady state at 1000of and 500lbfin2 and velocity 10fts. at the
n-butane c4h10 is burned with 80 percent theoretical air and the products of combustion an equilibrium mixture
consider an evacuated rigid bottle of volume v that is surrounded by the atmosphere at pressure p0 and temperature t0.
a rigid well insulated container is outfitted with a moveable but frictionless partition that separates two sides but
consider a large furnace that can supply energy in the form of heat at 2000 r at a steady rate of 3000 btus. determine
question a 49 kg person drinks 520. g of milk which has a caloric value of approximately 3.0 kjg. if only 19 of the
a piston cylinder device contains 1 kg of liquid water at 200kpa and 25oc. heat is added to the water in the cylinder
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