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A bullet having a velocity of 680 m/s hits a target 510 m away. If the temp. of the air was 18 degrees celsius, how long after the bullet was fired did she hear it hit the target?

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  1. Figure two things
    a) time it takes bullet to hit target: time=distanc/velocitybullet
    b) time for sound to travel back to the shooter
    time= distance/velocitysound

    Add those two times.

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