Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 19 - Exercises and Problems - Page 349: 28



Work Step by Step

We find the COP needed: $COP = \frac{\text{What we want}}{\text{What we are putting in}}= \frac{6.85}{2.32}=2.95$
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