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Energy carried by a wave 
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#1
Mar909, 02:45 PM

P: 3

Hi all,
In all books I looked it is written that energy carried by a wave is proportional to its amplitudes square i.e. E[tex]\propto[/tex]A^{2}, if wave equation is f(x)=Asin(wx) but what is the exact equation? Also if we define the wave with fourier series f(x)=[tex]\sum[/tex]Acos(nx)+Bcos(nx) what would be the energy carried by this wave? 


#2
Mar909, 02:56 PM

P: 108

[tex]E=k\sum{(A^2+B^2)}[/tex] if k is independent of frequency. Otherwise [tex]E=\sum{k(A^2+B^2)}[/tex] 


#3
Mar1009, 07:35 PM

P: 1

this is a little off topic, but i'm doing a project and i need to know some infrastructure issues with tidal wave energy generation, and i don't know of any, help please?



#4
Mar1009, 07:57 PM

Mentor
P: 41,090

Energy carried by a wave
Look at the various proposals for (and some actual installed) wave power extraction facilities, and think about those issues I mentioned above... 


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