A person A person who burst a cracker here’s it’s echo after one second when the distance to reflecting surface is 170 m 170 m one70 m 170 m find the speed of sound in air
A person A person who burst a cracker here’s it’s echo after one second when the distance to reflecting surface is 170 m 170 m one70 m 170 m find the speed of sound in air
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Answer:
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