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A vertical piston-cylinder device contains a gas at a pressure of 100 kPa. The piston has a mass of 5 kg and a diameter of 12 cm. Pressure of the gas is to be increased by placing some weights on the piston. Determine the local atmospheric pressure and the mass of the weights that will double the pressure of the gas inside the cylinder.
air at 200 kpa and 950 k enters an adiabatic nozzle at low velocity and is discharged at a pressure of 80 kpa. if the
water is contained in a pistoncylinder at 200 kpa 200degc and a volume of 20 l. the piston moves slowly compressing
the 244000-lb space-shuttle orbiter touches down at about 230 mihr. at 193 mihr its drag parachute deploys. at 35 mihr
Plot the total mass in the tank, in kg, and the amount of heat transfer, in kJ, versus the final quality x ranging from 0.2 to 1.0
air enters an adiabatic compressor at 197 kpa and 316 k and exits at a temperature of 508 k. determine the power kw for
the thermal efficiency of an internally reversible heat engine is 62 percent. the working fluid at 23 degrees c rejects
a well-insulated piston-cylinder device contains 0.05 m3 of steam at 300 kpa and 150oc. steam is now compressed in a
A motor has a disk mounted on its shaft. The disk has a diameter of 1 foot and weighs 60 pounds. Starting from rest, the motor rotates at 350 rpm after 5 seconds. If the motor has a 92% efficiency, determine the input power in watts.
a refrigerator operates on the ideal vapor compression refrigeration cycle with r-22 as the working fluid between
suppose that your business is operating at the threesigma quality level. if projects have an average improvement rate
Derive at least four concept designs to satisfy the given specification - draw a central cross-section of the heat exchanger
a seaplane is flying at 100 mph through air at 45 f. at what distance from the leading edge of the underside of the
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