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robotman
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- Homework Statement
- Efficiency is defined as work-out/work-in. Muscles operate with an efficiency of about 18.50 percent in converting energy internally into work externally. Accordingly, how much energy will be expended by a 56.40 kg person in the process of ascending several flights of stairs to a height of 20.60 m?
- Relevant Equations
- mgh
How to use efficiency in this problem?