November 25, 2015

Homework Help: Physics

Posted by Jemmy on Wednesday, May 27, 2009 at 4:10pm.

Jeff discovered an old water well in his backyard. He decided to measure its depth. He happened to have an audio oscillator of adjustable frequency. He sends sound waves down to the well and adjusts the frequency until he finally hears two successive resonances at frequencies of 195 Hz and 221 Hz. What is the depth of the well? Take speed of sound as 440 m/s.

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