1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Composite String Question

  1. Jul 25, 2007 #1
    1. The problem statement, all variables and given/known data
    The composite string consists of two strings having lengths of l1 and l2, and linear densities [tex]\rho[/tex]1 and [tex]\rho[/tex]2

    Find y[tex]_{r}[/tex] / y[tex]_{i}[/tex] in terms of l1 and l2, and [tex]\rho[/tex]1 and [tex]\rho[/tex]2

    2. Relevant equations
    y[tex]_{r}[/tex] is the wave reflected from the "interface" of the two strings, and y[tex]_{i}[/tex] is the incident wave from the left of the string with length l1 and linear density [tex]\rho[/tex]1

    3. The attempt at a solution
    actually, i dont know. my professor provided me only with the string wave function, y=yosin(kx-[tex]\omega[/tex]t), which obviously has no mention of linear densities.

    Help please. any suggestion would be appreciated. Thanks ^_^
    Last edited: Jul 25, 2007
  2. jcsd
  3. Jul 25, 2007 #2
    anyone, please help. :(
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook