Question

A sonar station picks up a return single after 3 second. how far away is the object? speed of sound in water =1440m/s2

Answer 1

Answer:

2.46 Kilo metres

Explanation:

the sound travels twice the distance from water level too object

let the object be D metres away then

using

speed = Distance / Time

we get

2D = 1440 × 3

D = 2460 metres

That is 2.46 km