Physics

Problem

A research vessel emits an ultrasonic pulse straight down into seawater where the speed of sound is

1500\,\text{m/s}

. The echo from the sea bed returns after

2.4\,\text{s}

. What is the depth of the sea at that point? a)

1500\,\text{m}

1800\,\text{m}

3600\,\text{m}

1200\,\text{m}