# Chapter 14 - Sound - Learning Path Questions and Exercises - Exercises - Page 524: 12

$d=126.5m$

#### Work Step by Step

$T=72^{\circ}F=22.22^{\circ}C$ Speed of bullet = 200m/s $v=331+0.6T=331+0.6(22.2)=344.3m/s$ Thus if d is the distance, total time = $1=\frac{d}{200}+\frac{d}{344.3}$ Thus, $d=126.5m$

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