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**1. Homework Statement**

The time it takes a high frequency sound to travel from the surface of the lake to the bottom of the lake and back to the surface is 0.1seconds. What is the depth of the lake?

**2. Homework Equations**

Speed of sound in water= 1500m/s

Time=0.1s

Depth=?

**3. The Attempt at a Solution**

Depth= Speed of sound * time elapsed/2= 1500*0.1/2

= 75m

IS THIS CORRECT? PLEASE HELP?