A 53-kg mountain climber, starting from rest, climbs a vertical distance of 764 m. At the top, she is again at rest. In the process, her body generates 4.2 × 106 J of energy via metabolic processes. In fact, her body acts like a heat engine, the efficiency of which is given by Equation 15.11 as e = WI/IQHI, where |W| is the magnitude of the work she does and IQH is the magnitude of the input heat. Find her efficiency as a heat engine. e = Number i Units
A 53-kg mountain climber, starting from rest, climbs a vertical distance of 764 m. At the top, she is again at rest. In the process, her body generates 4.2 × 106 J of energy via metabolic processes. In fact, her body acts like a heat engine, the efficiency of which is given by Equation 15.11 as e = WI/IQHI, where |W| is the magnitude of the work she does and IQH is the magnitude of the input heat. Find her efficiency as a heat engine. e = Number i Units
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:**Problem Statement:**
A 53-kg mountain climber, starting from rest, climbs a vertical distance of 764 m. At the top, she is again at rest. In the process, her body generates \(4.2 \times 10^6\) J of energy via metabolic processes. In fact, her body acts like a heat engine, the efficiency of which is given by Equation 15.11 as \( e = |W|/|Q_H| \), where \(|W|\) is the magnitude of the work she does and \(|Q_H|\) is the magnitude of the input heat. Find her efficiency as a heat engine.
**Efficiency Calculation:**
- **e = Number**: Input the calculated efficiency value.
- **Units**: Choose the appropriate units for efficiency (typically dimensionless or percentage).
**Instructions:**
Determine the efficiency using the given formula and input your answer in the provided fields.
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