This preview shows page 1. Sign up to view the full content.
80. (a) Since the string has four loops its length must be two wavelengths. That is, λ = L /2, where λ is the wavelength and L is the length of the string. The wavelength is related to the frequency f and wave speed v by λ = v / f , so L /2 = v / f and L = 2 v/f = 2(400 m/s)/(600 Hz) = 1.3 m. (b) We write the expression for the string displacement in the form y = y m sin( kx ) cos( ω t ), where y m is the maximum displacement,
This is the end of the preview. Sign up to access the rest of the document.
This note was uploaded on 04/16/2011 for the course PHYSICS 191262 taught by Professor Najafzadeh during the Spring '09 term at The Petroleum Institute.
- Spring '09