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Home Q & A Board Science-Related Homework Help Physics
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einsteindude einsteindude
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9 years ago
During each cycle of its operation, a certain heat engine does 40 joules of work while exhausting 160 joules of thermal energy to the environment. The energy efficiency of this heat engine is       

A) 75%.
B) 20%.
C) 80%.
D) 25%.
E) None of the above.
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
Authors:
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mel!811mel!811
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