A 20.0 cm long organ pipe is filled with air and is open at one end and closed at the other. The velocity of sound in air at 0 is 331 m/s. What is the frequency of the third mode?

A. 2,070 Hz
B. 2,190 Hz
C. 2,320 Hz
D. 2,450 Hz
E. 2,680 Hz


A. 2,070 Hz

Physics & Space Science

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What types of stars end their lives with supernovae?

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Physics & Space Science