Dolphins of the open ocean are classified as Type II Odontocetes (toothed whales). These animals use ultrasonic "clicks" with a frequency of about 54.9 kHz to navigate and find prey.
a. Suppose a dolphin sends out a series of high-pitched clicks that are reflected back from the bottom of the ocean 66 m below. How much time elapses before the dolphin hears the echoes of the clicks? (The speed of sound in seawater is approximately 1530 m/s.)
b. What is the wavelength of 54.9 kHz sound in the ocean?
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