## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson

# Chapter 16 - Traveling Waves - Exercises and Problems - Page 451: 2

#### Answer

A tension of 108 N will give a speed of 180 m/s

#### Work Step by Step

We can write an expression for the initial speed which is 150 m/s: $v_1 = \sqrt{\frac{T_1}{\mu}}$ We can write an expression for the final speed which is 180 m/s: $v_2 = \sqrt{\frac{T_2}{\mu}}$ We can divide the second equation by the first equation. $\frac{v_2}{v_1} = \frac{\sqrt{\frac{T_2}{\mu}}}{\sqrt{\frac{T_1}{\mu}}}$ $\frac{\sqrt{T_2}}{\sqrt{T_1}} = \frac{v_2}{v_1}$ $\sqrt{T_2} = \sqrt{T_1}~\frac{v_2}{v_1}$ $T_2 = T_1~(\frac{v_2}{v_1})^2$ $T_2 = (75.0~N)~(\frac{180~m/s}{150~m/s})^2$ $T_2 = 108~N$ A tension of 108 N will give a speed of 180 m/s.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.