A policeman standing between two high walls fires a gun. He hears the first echo after 3 seconds and the next 2 seconds later. What...

      

A policeman standing between two high walls fires a gun. He hears the first echo after 3 seconds and the next 2 seconds later. What is the distance between the wall. (Take velocity of sound = 330m/s).

  

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sharon
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sharon kalunda answered the question on September 11, 2019 at 07:59


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