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A general aviation aircraft has a propeller with 75 inches diameter that rotates at 2300 rpm (revolution per minute). Find the Mach number at the tip when the aircraft is standing on the ground ready to take off.
a rigid high-pressure tank has a volume of 3.8ft3 and containss nitrogen at 185 psia and at 290 f. a small leak
a stone of 20 kg of mass is held 15 m above a tank containing 200 kg of water. the stone water and the air are at the
an engine operates on the air standard diesel cycle with inlet air conditions of 77 f and 14.5 psia. the compression
air enters an evaporative cooler at 95 kpa 35 degrees celcius and 30 relative humidity and exits saturated. determine
A closed, frictionless, piston-cylinder assembly contains 4 lbm of H20. Beginning with an initial volume of 10 ft^3, the H2O is compressed slowly until the volume has been reduced to 10 percent of the initial volume. During the process, heat transfer..
oil is flowing in a pipeline at a rate of 20 ft3sec. the friction drop in the pipeline is 50 ft per mile. each pumping
water is the working fluid in an ideal rankine cycle. the water exits the boiler as a superheated vapor with a pressure
a household freezer operates in a room at 20ordmc. heat must be transferred from the cold space at a rate of 2 kw to
a cube of aluminum 10 cm on each side is initially at a temperature of 300degc and is immersed in a fluid at 100degc.
Air flows steadily through a compressor at a rate of 1.2 kg/s. The air enters the compressor at 950 kPa and 27 degrees Celsius and exits at 2.67 MPa and 127 degrees Celsius. If heat is lost to the environment at a constant temperature of 300K, determ..
contrary to what you might expect a solid steel ball can float on water due to the surface tension effect. determine
saturated water vapor in a closed sysytem is condensed by cooling it at constant pressure to a saturated liquid at
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