Question: Pipe A, which is 1.20 m long and open at both ends, oscillates at its third lowest harmonic frequency, it is filled with air for

Pipe A, which is 1.20 m long and open at both ends, oscillates at its third lowest harmonic frequency, it is filled with air for which the speed of sound is 343 m/s. Pipe B, which is closed at one end, oscillates at its second lowest harmonic frequency. This frequency of B happens to match the frequency of A. An x axis extends along the interior of B, with x = 0 at the closed end.
(a) How many nodes are along that axis? What are the
(b) Smallest and
(c) Second smallest value of x locating those nodes?
(d) What is the fundamental frequency of B?

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