A jet plane has a speed of M = 2 at an altitude of 10 km. How long does it take for the sound to travel to an observer on the ground after the plane passes directly overhead? Water is at a temperature...

A jet plane has a speed of M = 2 at an altitude of 10 km. How long does it take for the sound to travel to an observer on the ground after the plane passes directly overhead?

Water is at a temperature of 10°C. If a sonar signal takes 3 s to detect a large whale, determine the distance from the whale to the ship. Take
 = 1025 kg/m³
and
 = 2.42 GPa.