Question: A 1024 Hz tuning fork is dangled at the end of a string such that its center of mass is 1.2 m below the

A 1024 Hz tuning fork is dangled at the end of a

A 1024 Hz tuning fork is dangled at the end of a string such that its center of mass is 1.2 m below the point at which the other end of the string is attached to door frame, making a pendulum of sorts. The tuning fork may be treated as a point mass for the purposes of this problem. The pendulum is brought to a maximum angle and released. If the range of frequencies heard by an observer standing in the plane of the pendulum's motion is 1020-1028 Hz, what is the angle to which the pendulum was raised? The speed of sound is 340 m/s.

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The situation described involves the Doppler effect which occurs when a sound source moves relative to an observer causing the observer to perceive a change in the frequency of the sound The tuning fo... View full answer

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