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9. At an auto race, a member of the pit crew stands beside the track. A car approaches him at 110 m/s and emits a sound at frequency 1200 Hz. The air is still and the speed of sound is 340 m/s. What frequency will the pit crew member hear? (1 point) C (1pt) 1770 Hz X (0pts) 1590 Hz O (0pts) 811 Hz C (0 pts) 907 Hz 0/1 point

Hey I got this question wrong on my physics test so if you could help me find the right answer and describe how you got it that'd be great. Thanks!

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The frequency is, 340_(1200) 340-110 -1773.91 Hz -1770 Hz

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