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A device uses a Stirling cycle on 433 moles of a monatomic ideal gas between two reservoirs with temperatures of 416 K and 677 K as a refrigerator or a heat pump. The volume of the system shifts between 0.73 m3 and 2.23 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?
In an open RC circut, the total resistance is 15Kohms and the battery emf is 24 and constant is measured to be 35 microsecond calculate (a) the total capacitance of the circuit
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A uniform plank of length 2m and mass 29kg is supported by three ropes, as indicated by the blue vectors. Find the tension in each rope when a 690N person is 0.500m from the left end.
Consider a merry-go-round that has the form of a disc with radius 5.4 m and mass 160 kg. If five children, what is the total moment of inertia
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