- #1

Scarborm

- 10

- 0

Hey!

Here is one that I thought would be easy:

Two traveling waves move on a string that has a fixed end at x=0. They are identical except for opposite velocities. Each has an amplitude of 2.46mm, a period of 3.65ms, and a speed of 111m/s. Write the wave function of the resulting standing wave.

The wave would be represented by the function, y(x,t)=(A_sw)(sinkx)(sinwt)

My answers were: A_sw=2A=4.92x10^-3m

k=w/v=1720/111=15.5/m

w=2*pi/T=2*pi/(3.65x10^-3)=1720rad/s

This is not right though... any ideas? I am least sure about k.

Here is one that I thought would be easy:

Two traveling waves move on a string that has a fixed end at x=0. They are identical except for opposite velocities. Each has an amplitude of 2.46mm, a period of 3.65ms, and a speed of 111m/s. Write the wave function of the resulting standing wave.

The wave would be represented by the function, y(x,t)=(A_sw)(sinkx)(sinwt)

My answers were: A_sw=2A=4.92x10^-3m

k=w/v=1720/111=15.5/m

w=2*pi/T=2*pi/(3.65x10^-3)=1720rad/s

This is not right though... any ideas? I am least sure about k.

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