PHYSICS PLEASE HELP
posted by College student in need of help .
This question has two parts:
A typical steel B-string in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.640 m. What is the wave velocity along the string?.
Find the wavelength of the third harmonic of the guitar string
240 = v/2L
240*(2*.640) = 307 ...
1st harmonic wavelength = 1.28
so, First Question: v = 307m/s &
wavelength = 1.28
frequency of 3rd harmonic = 3*f = 720
n = # of harmonic so 3*f = 3rd harmonic
720=n(v/(2L)) so n/(2L) = wavelength
3/(2*.640) = 2.34 m
Second Question: 2.34m