Essential University Physics: Volume 1 (4th Edition) Clone

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

Chapter 15 - Exercises and Problems - Page 290: 51

Answer

27 meters

Work Step by Step

We have to find the ratios between the two heights, which we will call $h_1$ and $h_2$. Thus, we find: $\frac{h_2A\rho_wg}{h_1A\rho_wg}=\frac{3mg}{mg}$ Thus, we see that the ratio is 3 to 1. This means that the minimum depth is: $h= 9(3)=27m$
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