Question: (a) Determine the first three normal-mode frequencies for a pipe of length L that is closed at both ends. Explain your reasoning. (b) Use the

(a) Determine the first three normal-mode frequencies for a pipe of length L that is closed at both ends. Explain your reasoning.
(b) Use the results of part (a) to estimate the normal-mode frequencies of a shower stall. Explain the connection between these frequencies and the observation that your singing voice probably sounds better in the shower, especially when you sing at certain frequencies.

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