Question: Identical cellos are being tested. One is producing a fundamental frequency of 120.9 Hz on a string that is 1.25 m long and has a

Identical cellos are being tested. One is producing a fundamental frequency of 120.9 Hz on a string that is 1.25 m long and has a mass of 109 g. On the second cello an identical string is fingered to reduce the length that can vibrate. If the beat frequency produced by these two strings is 5.25 Hz, what is the vibrating length of the second string?

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