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What is the formula to determine how far away is an object whose echo takes 9 seconds to return?
Wiki User
ā 12y ago
The formula to determine distance based on echo time is: Distance = (echo time * Speed of sound in air) / 2. Since sound travels at approximately 343 meters per second in air, if the echo takes 9 seconds to return, the distance from the object would be approximately 1543.5 meters away.
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