Question

Ультразвук посланный и отраженный от морского дна , возвратился через 0,8 с . Скорость звука в морской воде 1490 м/с. Какова глубина моря?

Answer 1

T1=0.8/2=0.4
S=1490*0.4=596(m)
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Answer 2

Calculation of the Depth of the Sea

To calculate the depth of the sea based on the time it takes for the ultrasound to travel to the seabed and back, we can use the formula:

Depth = (Speed of Sound × Time) / 2

Given that the speed of sound in seawater is 1490 m/s and the round-trip time is 0.8 s, we can substitute these values into the formula to find the depth of the sea.

Depth = (1490 m/s × 0.8 s) / 2

Calculating this equation, we find:

Depth = 596 meters

Therefore, the depth of the sea is approximately 596 meters.

Please note that the provided answer is based on the given information and the assumption that the ultrasound travels directly to the seabed and back without any interference or reflections.