Register to reply 
A sinusoidal wave 
Share this thread: 
#1
Sep2207, 07:07 AM

P: 3

pls help me on this problem, thanks a lot.
A sinusoidal wave is described by y=(0.30 m)sin(0.20x40t). Determine the wave speed. 


#2
Sep2307, 09:58 AM

P: 181

What are the individual parts of the sin wave? 0.30 would be your amplitude, right? Break it down. What is the .20x and 40t?
A sin wave holds the form y = Asin(wt  kx + phase shift) + D, where D is DC offset. w is in rad/sec. K is .20, which is your WAVE number. K = 2*pi*f/c = 2*pi/lambda = w / c. Go from there. This should probably be moved to the HW forums. 


#3
Sep2407, 10:28 AM

P: 3

I got it.



Register to reply 
Related Discussions  
Sinusoidal Wave Problem  Introductory Physics Homework  3  
Meaningless sinusoidal wave?  General Math  11  
A sinusoidal wave  Introductory Physics Homework  0  
Sinusoidal wave  Introductory Physics Homework  2  
Sinusoidal wave propagation  Introductory Physics Homework  2 