Question

The sound source of a ship's sonar system operates at a frequency of 15.0 kHz . The speed of sound in water (assumed to be at a uniform 20∘C) is 1482 m/s. The ship is at rest in the water.

A) What is the wavelength of the waves emitted by the source? Express your answer with the appropriate units.

B) What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling directly toward the ship at 4.95 m/s ? Express your answer with the appropriate units.

Answer 1