Question

A vibrating stretched string has length 31 cm, mass 19 grams and is under a tension of 38 newtons. What is the frequency of its 3rd harmonic?
If the source of the wave is an open organ pipe of the same length as the wire, what would be the frequency of the 4 th harmonic?
How about showing that you have made some effort of your own? Find the appropriate equation in your course materials instead of expecting someone else to do it for you. Someone will gladly critique your work.

The formula will require that you know the wave speed in the wire. That is
V = sqrt[(Tension)/(linear density)]
= sqrt[38N/(.019kg/.31m)] = 24.9 m/s

The harmonic number is determined by how many half-wavelengths there are in the wire's standing wave pattern. For the frequency, you will use
F*(wavelength) = V

Related Questions

A vibrating string produces the highest pitch if it's; A) loose and long B) loose and short C) t... A string is stretched between two supports that are L = 0.9 m apart. It resonates at a frequency of... A stretched string has a third harmonic frequency of 600 Hz. What is the frequency of the second har... A vibrating stretched string has length 139 cm, mass 38 grams and is under a tension of 38 newtons.... If a string is vibrating in four parts, there are points where it can be touched without disturbing... A string is stretched by 2cm and its potential energy is u .if it is strechted by 10 cm,the potentia... A string stretched between two supports sets up standing waves with two nodes between the ends when... A string is stretched between fixed supports separated by 73.0 cm. It is observed to have resonant f... A violin string is vibrating at a frequency of 440 Hz. How many vibrations does the string make whil... When a stretched string is released, the potential energy in the string is converted to _____....