October 2018 2 55 Report
Dari permukaan laut, bunyi ultrasonik dipancarkan di dasar laut dengan kecepatan 1400 m/s. bunyi terdengar 0,5 sekon setelah bunyi di pancarkan, maka kedalaman laut di tempat itu adalah...
a. 3500 m
b. 700 m
c. 2800 m
d. 5600 m
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