A boy fires a gun and hears the echo 2 seconds later. If he is 350 m away from a wall, calculate the velocity of sound in air.
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Step-by-step explanation:
Hey!there let me help you with this.
As you have,
Time(t)=2 sec.
Distance(s)=350m.
Velocity(v)=?.
Speed=distance/time.
=350/2
=175 meter/sec.
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