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A vertical 12-cm diameter piston-cylinder device contains an ideal gas at the ambient conditions of 1 bar and 24°C. Initially, the inner face of the piston is 20 cm from the base of the cylinder. Now an external shaft connected to the piston exerts a force corresponding to a boundary work input of 0.1 kJ. The temperature of the gas remains constant during the process. Determine
(a) the amount of heat transfer,
(b) the final pressure in the cylinder, and
(c) the distance that the piston is displaced.
A Turbine develops 40,000KW power by running at a speed of 150 rpm at a head of 25 m. The discharge required is 150m^3/s. If the head of the turbine is reduced to 20 m. Predict the performance of turbine?
Compute the drag exerted on the vehicle by the bar when the vehicle travels at 65 mph through still air at - 20°F
a six-station automatic assembly line has an ideal cycle time of 12 sec. downtime occurs for two reasons. first
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A strut CB is guyed back to a wall support through cable BA. Two forces are applied to the concurrent joint at B. Determine the tension in cable BA and the force in member CB for a condition of equilibrium to occur.
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water flows steadily through a 30-ft-long pipe from a hot water heater to a faucet. the velocity is 9 fts. at the
please use ees to solve this problem.one method for storing hydrogen involves cooling it so that it liquefies. figure
a refrigerator with a coefficient of performance of 4 transfers heat from a cold region at -20c to a hot region at 30c.
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