Essential University Physics: Volume 1 (4th Edition)

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 6 - Section 6.5 - Power - Example - Page 106: 6.8

Answer

1532 dollars

Work Step by Step

We know that work is equal to the average power times the change in time. Thus, we first find the work done: $ W = 1459 \times 5 = 7295 \ kwh$ We use the price per kwh of energy to find: Cost = $.21 \times 7295 = 1532$ dollars
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