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Refrigerant-134a at 1 MPa and 100°C is throttled to a pressure of 0.8 MPa. Determine the reversible work and exergy destroyed during this throttling process. Assume the surroundings to be at 30°C.
Combustion in a cylinder causes the pressure to increase, which moves the piston a distance (x) of 7 inches. The piston is held in place by a spring ( k=60lbfin) that was at its relaxed length before the combustion process. How much work did the expa..
The 60W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of the air by 50Pa to maintain flow. The fan is located in a horizontal flow section whose diameter..
a robot arm is lifting a large body. the mass of the body is 4.66 slugs its radius of gyration is .6667 ft and its
Determine the angular velocity of the two 10-kg rods in Fig. 2 when , if they are released from rest in the position . Neglect friction.
A 0,5Kg mass attached linear spring suffress 01 N/m. Determine be naturak frequency of the system in hortz e reapert this calculation for a mass of 50Kg and a suffress of 10N/m and compare your result to that of part.
an 8-kg iron casting at 550 degc is quenched in a tank containing 0.03 m3 of liquid water initially at a temperature of
Mud is stopped using a wall made from 1.2 m high x 0.25 m wide rectangular concrete blocks as shown in figure below. Blocks density is 2700 kg/m3, mud density is 1800 kg/m3, and friction coefficient between ground and concrete blocks is f = 0.3.
two kg of air is contained in a piston-cylinder assembly. the initial volume is 0.01m3 and pressure is 10 bar. the air
A sports car has a mass of 2000 kg and an engine running at an efficiency of 0.63, as it moves forward with a constant velocity of v=50 m/s,the wind creates a drag resistance on the car of FD=1.2v^ newtons. Determine the maximum power supplied by the..
a pressure cooker closed tank contains water at 200 f with the liquid volume being 110 of the vapor volume. it is
a site near an ocean is being evaluated for power generation using wind turbine. the site is observed to have steady
a ship travels 40km. on course of 17 degree south of east and then travels 90km. on course 50degree west of south. find
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