Abstract
This paper describes a simple experiment that students can do at home to determine the speed of sound in air. A set of audio files with selected frequencies is first created and stored on the student's computer. Resonances are obtained in a straight pipe partially inserted into a bucket of water. The length of the air-filled part of the pipe is changed by raising and lowering the pipe. Resonances are detected by ear. We present some typical results obtained by students at home. All are in good agreement with the expected value.
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