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
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Chapter1: Units, Trigonometry. And Vectors
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**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.
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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