Dolphins emit clicks of sound for communication and echolocation. A stationary marine biologist is monitoring a dolphin swimming t owards a school of fish. From her measurements the marine biologist

can tell that the speed of sound in seawater, c =1524 m/s, the dolphin has a speed = 10.9m/s away from the biologist while the fish ha s speed v = 16.5 ms towards the dolphin and biologist The number of clicks the biologist detects from the dolphin each second is f= 2455 HZ What is the frequency of clicks produced by the dolphin? What frequency of clicks do the fish detect coming from the dolphin? If the dolphin continued producing clicks at the same frequency but came to rest what would be the distance between adjacent wave fronts?