Recent content by Atheel

The prof. says: "Mu is is the mass per unit volume , if you look at what;s given in the question you can see that you can make it up from the given data as well" can u give me a hint?

I think I should use this: "Given that when the string is perfectly horizontal its tension = To and amplitude motion is A." ??

ok now I have a problem, I think the wave speed is the same as the two sides fixed string... if I am right, then I need the density to work it out but I don't have it!

oh so in my case wavelength= 4*L ! right?!

Homework Statement A given string length L, connected at one end while the other end is free. Assume that the string moves in one dimensional, ie, the amplitude can be described by a function of the shape of his y (x, t). What is the average kinetic energy (as a string), assuming it moves...

I think I should use: y(x,t)= A*e^i(kx+wt) + B*e^-i(kx+wt) nd then y(0,t)=0 should I also try dy/dt =0 ? its all missed up I am tring to solve this question more than two days.. the problem is I don't have material to stdy about this type of questions... do u have some examples or some good...

I think it called the fundamental. the shape of the wave is y=Acos(kx-wt) (asuming that the left edge of the string is stable). then I know that y(0,t)=0. the wave length is 2*L ? but how do I use the tension...

hey its only one question not three... I have tried to find the frequency using: y(0,t)=0 y=A*cos(kx+wt) but then I don't know how to find the σ to use: Ek= σ*(A^2)*(ω^2)/2T * ∫cos^2(kx+wt) thnx

1. A given string length L, connected at one end while the other end is free. Assume that the string moves in one dimensional, ie, the amplitude can be described by a function of the shape of his y (x, t). What is the average kinetic energy (as a string), assuming it moves with the lowest...