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A device uses a Stirling cycle on 391 moles of a monatomic ideal gas between two reservoirs with temperatures of 395 K and 663 K as a refrigerator or a heat pump. The volume of the system shifts between 0.95 m3and 2.45 m3.
1) How much energy does this device remove from the cold reservoir?
2) How much energy does this device transfer into the hot reservoir?
3) How much work is done by the device on the gas?
4) What is the coefficient of performance of this engine if we use it to cool a refrigerator?
5) What is the coefficient of performance of this engine if we use it as a heat pump?
You create a diffrent kind of pendulum by swinging a meter stick (mass m) on its end. It swings with small oscillations. Determine the angular frequency w ( I=1/3 ML ^2)
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A person with a mass of 71.6 kg and a volume of 0.089 m3 floats quietly in water. (a) What is the volume of the person that is above the water? If an upward force F is applied to the person, the volume of the person above the water increases by 0...
Illustrate what is the minimum centripetal acceleration the truck must have going around the circular curve with radius 0.35 km so that it will clear the gully and land on the other side?
What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a velocity of 30 meters/second? A. 1.6 m/s^2 B. 3.0 m/s^2 C. 3.4 m/s^2 D. 5.0 m/s^2
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