Calculating Density of Immersed Weight using Vibrations and Fluid Statics

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Vibrations and Fluid Statics

One end of a horizonatal wire is fixed, while the other passes over a smooth pulley and has a heavy weight attached to it. The frequency of the fundamental note emitted when the wire is plucked is 392 Hz. When the weight is completely immersed in water, the new fundamental frequency is 343 Hz. Calculate the density of the weight.

 

[nrqed]

Vibrations and Fluid Statics

One end of a horizonatal wire is fixed, while the other passes over a smooth pulley and has a heavy weight attached to it. The frequency of the fundamental note emitted when the wire is plucked is 392 Hz. When the weight is completely immersed in water, the new fundamental frequency is 343 Hz. Calculate the density of the weight.

WHat have you done so far? Do you know how the weight of an object changes when it is immersed in a liquid?