Physics, 03.02.2020 23:43 corcoranrobert1959
The (kelvin-planck statement of the) second law of thermodynamics reads as follows: it is impossible for an engine working in a cycle to produce no other effect than that of extracting heat from a reservoir and performing an equivalent amount of work. the phrase "in a cycle" does not apply in this situation, so the second law does not forbid heat being converted entirely into work. for this particular problem, is all of the heat energy absorbed by the gas in fact turned into work done on the piston
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Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
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The (kelvin-planck statement of the) second law of thermodynamics reads as follows: it is impossibl...
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