(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

y(x,t)=[(4.8mm)sin(x/3.6m)cos(130rad/s)t]

find Amplitude, wavelength and velocity of wave from the two combined waves.

there are two waves here, combined into one, show each wave function: y1(x,t) and y2(x,t).

2. Relevant equations

ok, i can fully manipulate the wave function when it's in it's basic form of y(x,t)=Acos(kx-wt+phi) but i must be missing something here. is the problem in a form that can be worked or must it be reworked with a trig function? it's all being multiplied so i'm not sure how to get it into the (kx-wt) format.

any help would be appreciated.

thanks.

3. The attempt at a solution

because they are two waves in this equation Amplitude is (4.8mm/2)=2.4mm... correct?

wave length can be found using kx= [2(pi)x]/(lambda) and velocity will be found using wt=2(pi)tf to find frequency and then v=(lambda)(frequency)

my question is do i need to change the equation? or can i just use it as is?

I don't have the answer to this question, so if you can point me in the right direction?

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# Homework Help: Interpreting this wave funtion

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