Chapter 4, Problem 14CCSR

To determine

Speed of the sound in miles per hour.

Answer to Problem 14CCSR

Speed in miles per hour is $762.91\text{ miles/hour}$

Explanation of Solution

Given :

Speed in m/s is $340.3\text{ m/s}$

It is known that,

  $1\text{ m =0}\text{.000621 miles}$

And,

  $\begin{array}{l}1\text{ s =}\frac{1}{3600}\text{ hour}\\ \text{=2}\text{.77}\times {\text{10}}^{-4}\text{ hour}\end{array}$

Therefore,

  $\begin{array}{l}340.3\text{ m/s =340}\text{.3}\times \frac{0.000621\text{ miles}}{2.77\times {10}^{-4}\text{ hour}}\\ =762.91\text{ miles/hour}\end{array}$