Taryn S.

asked • 03/31/15

Approximately how many kilometers does sound travel in five seconds?

When the temperature is 68°F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometers does sound travel in five seconds?

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Ray G. answered • 03/31/15

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To answer this question, you need to use a basic equation relating VELOCITY, DISTANCE AND TIME.

 

The equation is VELOCITY = DISTANCE/TIME. Or V = d/t

To solve this equation for d, multiply both sides by t.

v*t = d.  Now plug in the values for v and t.

343 m/s * 5 s = d

1715 m = d. This answer is in meters. Since there are 1000 m in a kilometer, divide 1715 by 1000 to get km.

1715m * 1 km/1000m = 1.715 km  Yay!!!!!

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Taryn S.

Thank you Mr. Ray
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03/31/15

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