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May 29, 2015

Homework Help: physics

Posted by anonymous on Monday, March 19, 2007 at 2:47am.

A theoretical gasoline engine runs with 76 percent efficiency. It is calculated that it expels 3.25*10^4 J of heat.
a. Find the heat absorbed in one cycle.
b. Find the work output in one cycle.

All this comes from the definition of efficiency.

percentefficiency*100= work out/ heat in

and of course, work out= heat in - expelled energy.

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