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17 June, 09:22

Sebuah kapal digunakan untuk mengukur kedalaman laut dengan menggunakan perangkat suara. Bunyi ditembakkan ke dasar perairan dan lima detik kemudian terdengar bunyi pantul. Jika cepat rambat bunyi di dalam air adalah 1500 m/s, maka kedalaman perairan tersebut adalah ...

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  1. 17 June, 09:32
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    Translation of question

    A ship is used to measure the depth of the sea using sound devices. A sound was fired at the bottom of the water and five seconds later there was a bounce. If the speed of sound in the water is 1500 m / s, then the depth of the water is

    Answer:

    3750 m

    Explanation:

    For sound to bounch back and be heard, this phenomenon is echo. Therefore, the distance traveled is 2d. Considering that speed is distance per unit time, expressed as s=d/t where d is distance, t is time and s is speed, in this case we say s=2d/t. Making d the subject of the formula then d=0.5st

    Given 5 s as time and 1500 m/s as speed, we deduce that d=0.5*1500*5=3750 m
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