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In a motorcycle engine, after combustion occurs in the top of the cylinder, the piston is forced down as the mixture of gaseous product undergoes an adiabatic expansion. Find the average power involved in this expansion when the engine is running at 4000 rpm, assuming that the guage pressure immediately after combustion is 15.0 atm, the initial volume is 50.0 cm 3 , and the volume of the mixture at the bottom of the stroke is 250 cm 3 . Assume that the gases are diatomic and the time involved in the expansion is one half that of the total cycle.
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