SOLUTION: How far off would a target be if the sound returning is approximately 5 seconds after the explosion that made it. A recent demonstration I viewed was of a rocket fired at a target

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Question 863214: How far off would a target be if the sound returning is approximately 5 seconds after the explosion that made it. A recent demonstration I viewed was of a rocket fired at a target said to be approx 1.8km. It took 5 seconds for the sound to return
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the speed of sound.
Distance = Rate * Time.
At sea level, the speed of sound is 340 m%2Fs.
D=340%285%29=1700m=1.7km