A 52-kg mountain climber, starting from rest, climbs a
Chapter , Problem 48(choose chapter or problem)
A 52-kg mountain climber, starting from rest, climbs a vertical distance of 730 m. At the top, she is again at rest. In the process, her body generates 4.1 3 106 J of energy via metabolic processes. In fact, her body acts like a heat engine, the effi ciency of which is given by Equation 15.11 as e 5 uWu/uQHu, where uWu is the magnitude of the work she does and uQHu is the magnitude of the input heat. Find her effi ciency as a heat engine.
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