A pianist strikes his tuning fork (f = 523.3 Hz) and strikes a key on the piano at the same time. The two have nearly the same frequency; he hears 3.0 beats per second. As he tightens the piano string, he hears the beat frequency gradually decrease to 2.0 beats per second when the two sound together. What was the frequency of the piano string before it was tightened?

A pianist strikes his tuning fork (f = 523.3 Hz) and strikes a key on the piano at the same time. The two have nearly the same frequency; he hears 3.0 beats per second. As he tightens the piano string, he hears the beat frequency gradually decrease to 2.0 beats per second when the two sound together. What was the frequency of the piano string before it was tightened?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A pianist strikes his tuning fork (f = 523.3 Hz) and strikes a key on the piano at the same time.
The two have nearly the same frequency; he hears 3.0 beats per second. As he tightens the
piano string, he hears the beat frequency gradually decrease to 2.0 beats per second when the
two sound together. What was the frequency of the piano string before it was tightened?

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