Physics, 09.12.2021 17:40 luludawn3874
If the speed of sound in air is 340 m/s which strike with an obstacle at distance of 30 m. Find
the time to heard an echo?
Please answer fast
Answers: 2
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If the speed of sound in air is 340 m/s which strike with an obstacle at distance of 30 m. Find
th...
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