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This is a long question. You must upload your FULL written answer. Also type in the...

This is a long question. You must upload your FULL written answer. Also type in the answer of (b) in the space provided.

A sound wave travels on a steel wire that has a length of 0.98 m, mass per unit length of  0.0034 kg/m and is under a tension of 86 N. The wire has a cross-sectional area 0.021 m3 and a density of 7,629 kg/m3. The Young's modulus of the wire is given as 300,308,879 Pa.

Given: speed of sound in air is 345 m/s.

a) Calculate the fundamental and second frequencies of the stretched wire.

b) Calculate the wavelength for fundamental frequency calculated in a).

c) Calculate the fundamental frequency if the wire is stretched to the elastic limit which is equal to Young’s modulus.

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