The sound source of a ship's sonar system operates at a frequency of 22.0 . The speed of sound in water (assumed to be at a uniform 20) is 1482 . What is the wavelength of the waves emitted by the source? What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling straight toward the ship at 4.95 ? Assume that the ship is at rest in the water.