Essential University Physics: Volume 1 (3rd Edition)

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

Chapter 17 - Exercises and Problems: 44

Answer

Please see the work below.

Work Step by Step

(a) We know that $mass \space of\space ice=\rho V$ We plug in the know values to obtain: $m=917\times 10^{11}$ $m=9.17\times 10^{13}Kg$ Now $Energy \space converted\space to \space melt \space ice=mL_f$ We plug in the known values to obtain: $Energy \space converted\space to \space melt \space ice=9.17\times 10^{13}\times 334=3.265\times 10^{16}KJ$ (b) As We know that $P=\frac{Q}{t}$ We plug in the known values to obtain: $P=\frac{3.265\times 10^{16}}{3weeks\times \frac{7days}{week}\times \frac{24hrs}{day}\times\frac{3600}{1hr}}$ $P=1.8\times 10^{10}KW$
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