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An exercise machine indicates that you have worked off 2.5

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker ISBN: 9780321541635 54

Solution for problem 27P Chapter 16

Physics with MasteringPhysics | 4th Edition

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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

Physics with MasteringPhysics | 4th Edition

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Problem 27P

Problem 27P

An exercise machine indicates that you have worked off 2.5 Calories in a minute-and-a-half of running in place. What was your power output during this time? Give your answer in both watts and horsepower.

Step-by-Step Solution:

Solution 27P

Step 1 of 3:

Our aim is to find the power output of the person in watts and horsepower.

The work done by the person W = 2.5 cal

The time duration t = 1.5 min = 90 s

1 cal = 4.186 J

1 hp = 746 J/s = 746 watt

Step 2 of 3

Chapter 16, Problem 27P is Solved
Step 3 of 3

Textbook: Physics with MasteringPhysics
Edition: 4
Author: James S. Walker
ISBN: 9780321541635

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An exercise machine indicates that you have worked off 2.5