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anaya6562:
I hadalready my question a number of times
It is one starting from a reflector
A reflector is situated at a distance of 860m from sound source after how much time an echo will be heard.speed of sound at room temperature is 344m/s.
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A reflector is situated at a distance of 860m from sound source after how much time an echo will be heard.speed of sound at room temperature is 344m/s.
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