Question: In Figure a string, tied to a sinusoidal oscillator at P and running over a support at Q, is stretched by a block of mass

In Figure a string, tied to a sinusoidal oscillator at P and running over a support at Q, is stretched by a block of mass m. The separation L between P and Q is 1.20 m, and the frequency f of the oscillator is fixed at 120Hz.The amplitude of the motion at P is small enough for that point to be considered a node. A node also exists at Q.A standing wave appears when the mass of the hanging block is 286.1 g or 447.0 g, but not for any intermediate mass. What is the linear density of the string?

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With the string fixed on both ends using Eq 1666 and Eq 1626 the resonant frequencies can be ... View full answer

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