- #1

- 48

- 0

## Homework Statement

A submarine sends out a sonar wave that has

a frequency of 545 Hz. If the wavelength of the

sound is 2.60 m, how long does it take for the

echo to return when the sound is reflected from

a submarine that is 5.50 km away?

## Homework Equations

## The Attempt at a Solution

i used the equation p=1/f and i plugged in frequency and got 0.00183 seconds, the right answer should be around 7-8 seconds