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October 22, 2014

Homework Help: physics

Posted by Elisa on Wednesday, August 6, 2008 at 12:12am.

A uniform string fixed at one end passes over a pulley and then is attached to a hanging object. The string is horizontal between the fixed end and the pulley. When you let the hanging object oscillate in the vertical plane, the fundamental frequency of the horizontal part of the string also oscillates. If the sound of the string changes by one octave during the oscillation, what maximum angle does the oscillating part of the string make to the vertical? (Hint: When a frequency is doubled, the sound changes by an octave.)

Would I have to calculate the force of the pulley and the object in order to do this problem? How would I do it?

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