The time that the bullet takes to strike the target:
The speed of sound in air:
, where TC is the temperature of the air.
Time elapsed is:
, where ts is the time taken by sound.
A bullet shot from a rifle travels at 1000 m/s. What is the elapsed time between when the bullet strikes a target 500 m away, and when the sound of the gunshot reaches the target? Assume air temperature is 20 °C.
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