A person is standing in front of a tall building. He produces a sound and received his echo in 3 sec. How far is he standing from the building? Speed of sound is 330 m/s
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Answer:
total distance travelled by the waves (sound) is 2x. Time taken is 2s. Speed of sound is 340 m/s.
The data we have is:
Distance : 2x meters
Speed:340 m/s.
Time: 2s.
Distance=Speed × time
2x=340×2
x=340m
Therefore, the distance is 340m.
Explanation:
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