hard · MCAT chem-phys
A pipe closed at one end has a fundamental frequency of 200 Hz. If the pipe is moving at 20 m/s away from a stationary observer, what frequency will the observer hear for the pipe's first overtone? (Speed of sound v = 340 m/s)
- 377.8 Hz
- 566.7 Hz
- 400 Hz
- 635.3 Hz
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