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An engine absorbs 1698 J from a hot reservoir and expels 1205 J to a cold reservoir in each cycle.
(a) What is the engine's efficiency?
%
(b) How much work is done in each cycle?
J
(c) What is the power output of the engine if each cycle lasts for 0.302 s?
W
What is the vertical force on the support closest to the piano.
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