Dec10-08, 09:44 AM
1. The problem statement, all variables and given/known data
A wave travels along a string at a speed of 261 m/s. What will be the speed if the string is replaced by one made of the same material and under the same tension but having twice the radius?
2. Relevant equations
v=squareroot(T/mu) (where T=tension)
mu=m/L (where m= mass and L= length)
3. The attempt at a solution
I'm not sure how I need to manipulate mu to accomadate for twice the radius. Volume would change, but wouldn't mass as well? I thought maybe I would need to use density, but we are not given the density of the string. Do I assume the mass doesn't change because the tension is the same? Fatter strings are supposed to go slower. So I'm really stuck on what to do..Help please?!
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