As a young P. walkeri matured, the air passages in its
Chapter 14, Problem 120(choose chapter or problem)
As a young P. walkeri matured, the air passages in its crest might increase in length from 1.5 m to 2.7 m, causing a decrease in the standing wave frequencies. Referring to Figure 1443, do you expect the change in the fundamental frequency to be greater than, less than, or equal to the change in the second harmonic frequency?
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