Question

A standing wave is formed on a string for which three and one half wavelengths fit into the total length of the string, which is 2.5 m. The wave has a period of 0.10 s. If the string has a mass density of 220 g/m, what is the tension in the string? (Answer: 11.2N)

Answer is provided above. Please show all work on how to get the answer. Thank you!
bobpursley
calculatae wavelength: 2.5m/3.5

Law of tensions:

velocity=sqrt(tension/mu)

find velocity: v=f*wavelength=wavelength/period

mu given at .22kg/m

tension=v^2*mu=work it out

Related Questions

The speed of a wave in a string is given by v = Ö(FT/m), where FT is the tension in the string and m... The speed of a wave in a string is given by v = sqrt (FT/m), where FT is the tension in the string a...