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fenix001 [56]
3 years ago
7

An iceberg is 3,000 metres from a submarine. The submarine emits ultrasound. How long until the submarine detects the iceberg?

Physics
2 answers:
olga_2 [115]3 years ago
8 0

Answer:

Explanation:

t= d/s

t = 3000/330

t=9.09*2

t=18.18s

The submarine detects the iceberg in 18.18s

Ilia_Sergeevich [38]3 years ago
3 0
3.92s
Ultrasound works by the waves traveling to the object, bouncing off, then returning. So the distance traveled is twice that of the actual distance.
Therefore d=6,000m
d= speed x time
Speed of sound in water is about 1,530.
6000 = 1530 * t
t = 3.92s
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<h3>Definition of velocity</h3>

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<h3>Average velocity of Clara</h3>

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Replacing in the definition of velocity:

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