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A piston-cylinder assembly contains 1 lb of Refrigerant 134a initially as saturated vapor at 10°F. The refrigerant is compressed adiabatically to a final volume of 0.8 ft3. Determine if it is possible for the pressure of the refrigerant at the final state to be
(a) 60 lbf/in.2(b) 70 lbf/in.2
Water flows from the pipe shown in the figure with a speed of 2.0m/s . A) What is the water pressure as it exits into the air?
Steel balls at 150°C with a specific heat of 0.50 kJ/kg.°C are quenched in an oil bath to an average temperature of 70°C at a rate of 15 balls per minute. If the average mass of steel balls is 1.2 kg, what is the rate of heat transfer from the balls ..
The force of gravity on an imaginary Earth-mass planet - When the two balls are separated horizontally by 5.0 cm, the string hangs
combustion gases enter a gas turbine at 627 degc and 1.2 mpa at a rate of 2.5 kgs and leave at 527degc and 500 kpa. it
A laminar boundary layer of 20-C atmospheric air moving at 2 m=s exists on one side of a 2-m-wide, 3-m-long ?at plate. At x ¼ 3 m ?nd:
a steam power plant operates on an ideal reheat rankine cyclenbspbetween the pressure limits of 9mpa and 10kpa. the
Find the rms value of each of the following periodic currents:
The tennis coach needs a better tennis ball serve for practice. This device must fire a sequence of standard tennis balls ball from one side of a standard tennis court over the net such that they land and bounce within each of three court ..
a large coal fired power plant has an efficiency of 45 and produces net 1500 mw of electricity. coal releases 25000
Determine the peak runoff from 500 ft of pavement(32ft wide) that drains toward a gutter(for 10 years freq. storm), the pavement slope is .0005, n=.016 and c=.9
an ideal gas carnot cycle with air in a piston cylinder has a high temperature of 1200 k and a heat rejection at 400 k.
1 for the piping diameter changes and flow directions shown below if the velocity at the input is 5 ms the initial
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