Dolphins of the open ocean are classified as Type II Odontocetes(toothed whales)

Question

Dolphins of the open ocean are classified as Type II Odontocetes(toothed whales). These animals use ultrasonic "clicks" with afrequency of about 54.8 kHz tonavigate and find prey. (a) Suppose a dolphin sends out a series ofhigh-pitched clicks that are reflected back from the bottom of theocean 65 m below. How much timeelapses before the dolphin hears the echoes of the clicks? (Thespeed of sound in seawater is approximately 1530 m/s.) (a) Suppose a dolphin sends out a series ofhigh-pitched clicks that are reflected back from the bottom of theocean 65 m below. How much timeelapses before the dolphin hears the echoes of the clicks? (Thespeed of sound in seawater is approximately 1530 m/s.)

Explanation / Answer

          Giventhat the depth of the sea is d = 65m           Thespeed of wave is v = 1530 m/s ----------------------------------------------------------------          time taken tohear echo is t = 2d / v                                                   = 2*65m / 1530m/s                                                    =---------sec           

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