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natita [175]
3 years ago
9

(1) Expansion of concrete

Physics
1 answer:
Pachacha [2.7K]3 years ago
6 0
Abcdefghijklmnopqurtuv
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A sonar pulse sent out by a boat arrives back after 4 seconds. If the speed of sound in water is 1600m/s, how deep is the water?
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Answer:

the boat would be deeped by 3200 m

Explanation:

Given that

The boat arrives back after 4 seconds

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So,

As we know that

Distance = ( speed × time) ÷ 2

Here we divided by 2 because the boat arrives back

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Therefore the boat would be deeped by 3200 m

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