$[-/3$ Points$]$

WACALCPHYSMC $17\mathrm{.}3\mathrm{.}001.$

A point source emits sound waves with a power output of $100$ W $.$ What is the intensity of the sound $10$ m from this source?

$400\frac{W}{m^2}$

$800\frac{W}{m^2}$

$4{10}^4\frac{W}{m^2}$

$4\frac{W}{m^2}$

$\frac{1}{4}\frac{W}{m^2}$