Physics, 12.02.2021 22:30 jaydenhoward
4.The Dolphin emits short bursts of ultrasound. The echoes of the ultrasound help the dolphins find fish. A SONAR receives a strong echo of ultrasonic signal it sent downwards into the sea 3.6 seconds after the transmission. Calculate the depth of the sea-bed if the speed of ultrasonic waves in sea-water is 1500 m/s.
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4.The Dolphin emits short bursts of ultrasound. The echoes of the ultrasound help the dolphins find...
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