Here's my question (parts a-c are correct, but I need help with d and e):(adsbygoogle = window.adsbygoogle || []).push({});

Transverse waves on a string have a wave speed 8 m/s, amplitude .09 m, and a wavelength .38 m. The waves travel in the -x direction, and at t=0 the x=0 end of the string has zero displacement and is moving in the +y direction.

Calculator should be in radians

a) Find the following properties of these waves.

Frequency 21.05 Hz

Period .0475 seconds

Wave number 16.53 rad/m

b) Complete the wave function describing the wave

.09m*sin 2pi[(21.05 Hz)t+(2.63/m)x]

or (without units) = .09 Sin 2pi[21.05*t+2.63x]

c) Find the transverse displacement of a particle at x=.36m at time t=.15s

y=5.5702 cm

Everything is correct up to this point

Here's what I have Wrong:

d) How much time must elapse from the instant in part c until the particle at x=.36 m next has zero displacement?

e) How much additional time must elapse from the instant in part d until the next time the particle has zero displacement?

If anyone oculd help me, I would greatly appreciate it!

Thanks!!!!

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# Homework Help: My wave problem

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