A heat engine with a thermal efficiency of 25% is used to hoist 2.5-kg bricks to an

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A heat engine with a thermal efficiency of 25% is used to hoist 2.5-kg bricks to an elevation of 3.0 m. If the engine expels heat to the environment at a rate of 1.2 x 106 J/h, how many bricks can the engine hoist in 2.0 h?

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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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Question Posted: Aug 29, 2015 05:02 AM

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A heat engine with a thermal efficiency of 25% is used to hoist 2.5-kg bricks to an

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Only 25 of the heat input is converted to work so 75 is wasted 075 Q in t Q out t 12 10 6 ...View the full answer

College Physics

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