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AP® Physics 1 & 2

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Moderate

Length of Open Pipe

APPH12-ONYNDW

A certain pipe that is open at both ends is able to play a 340 Hz note as its fundamental frequency, when the air in the pipe is such that sound waves travel at 340 m/s in the air.

How long is this pipe?

A

25 cm

B

50 cm

C

1 meter

D

2 meters