October 2018 2 28 Report
Getaran ultrasonik dipancarkan dari permukaan laut menuju kedasar laut.selang wktu 2 sekon kemudian getaran ultrasonik tertangkap kmbli dipermukaan laut jika cepat rambat bunyi di air laut 1400m/s,kedalaman laut tersebut adlh?
a.350m
b.7000m
c.1400m
d.2800m
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