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An inventor claims to have invented a heat engine that operates using energy reservirs whose temperatures are 600K and 300K. She also claims that this engine produces 10kW of power while rejecting heat at a rate of 2 kW
A) what is the rate at which heat is being transferred from the high temperature reservoir to this heat engine?
B) What is the upper limit on the thermal efficiency of this heat engine?
C) Does this heat engine satisfy the second law?
the greatest fluctuation of energy to be stored by an engine flywheel is 2kj when the mean engine speed is 4 revs. the
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
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The rigid L-shaped member ABC is supported by a ball and socket at A and by three cables. Determine the tension in each cable and the reaction at A caused by the 242 kg load applied at G.
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