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bobbo7410
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Homework Statement
a wave on a cable, mass per unit length(mu) 1.70 kg/m, is created by a machine providing 250(p) W of power. It creates waves of wavelength(lambda) 2.90 m and an amplitude(A) 2.90 m. What's the speed of these waves?
Homework Equations
v = lamda/frequency
k = 2pi/lamda
w = 2pi/t = 2pi*frequency
etc
The Attempt at a Solution
i am given mu , p , a , lamba as well i can find k
Since they give power and that is a main equation in the chapter, I would use the equation: p = (1/2)mu * w^2 * A^2 * v and solve for v. simple.
butttt I simply cannot find the correct equation to find "w" the angular frequency. Every equation I've looked at it seems I'm just short 1 variable.
if I could find T(period) or w(angular frequency) or f(frequency) I could figure out the solution.This is my first time checking out these forums. Any input would be greatly appreciated!
** ill be online refreshing constantly for the next couple hours : ) **
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