Answer:
The time taken for the sound wave to make the round trip is 0.16 s.
Explanation:
Given;
distance traveled by the sound wave, d = 120 m
bulk modulus of sea water, B = 2.3 x 10⁹ N/m²
density of sea water, ρ = 1022 kg
The speed of the wave is given by;
[tex]v = \sqrt{\frac{B}{\rho} } \\\\v = \sqrt{\frac{2.3*10^9}{1022} }\\\\v = 1500.16 \ m/s[/tex]
Speed is given by;
[tex]Speed = \frac{Distance}{Time}[/tex]
total distance of the round trip = 2 x 120m = 240 m
Time taken for the sound wave to make the round trip is given by;
[tex]Time = \frac{Distance}{Speed} \\\\Time = \frac{240}{1500.16} \\\\Time = 0.16 \ second[/tex]
Therefore, the time taken for the sound wave to make the round trip is 0.16 s.
