Posted by **Sam** on Wednesday, February 29, 2012 at 4:45pm.

A person performs a work task at a mechanical efficiency of 20 percent and at total energy output of 15kcal/min. How much energy(kcal/min) is lost as heat? and how much energy(kcal/min) is used to actually perform the work?

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**Frodo**, Tuesday, October 7, 2014 at 9:22am
Cock in ma mouth

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