Question

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FULL written answer. Also type in the answer of (b) in the space
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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
m^{3} and a density of 7,629 kg/m^{3}. 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.

Answer #1

QUESTION 11
This is a long question. You must upload your
FULL written answer. Also type in the answer of (a) in the space
provided.
The floodlight in a park weighs 20 kg and is supported by a
cable and horizontal beam as shown in the figure below. Assume that
the beam is massless. The angle between the beam and cable is 24
degrees.
a) Calculate the tension in the cable.
b) Calculate the magnitude and direction of the horizontal...

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original length of each wire is the same before being stretched by
the planters, what diameter nickel wire must you buy to have your
planters hang evenly? Young’s...

7a. Express the fundamental frequency of a piano wire fixed at
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ρsteel = 7.86 × 103 kg/m3. What is the tension required for a steel
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8.One of the harmonic frequencies of tube A...

A transverse wave propagates in a very long wire of mass per
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a) If at t=0 and x=0 the displacement assumes its maximum value
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a) A 1 meter long guitar string of linear mass density 2g/m3 is
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b) This string will produce sound waves in the air, determine
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c) Suppose you had two...

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