Wave on a string meeting a boundary between areas of different densities

AI Thread Summary
The discussion revolves around solving a problem related to wave behavior at a boundary between different densities. The user has successfully derived the wave equation but struggles with the subsequent part of the problem. They seek guidance on how to approach the next steps, particularly regarding second-order ordinary differential equations. A suggestion is made to post the question in an advanced physics forum for better assistance. The user acknowledges this advice and plans to seek help in a more appropriate setting.
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This is the problem I'm working on: http://i.imgur.com/PBMFG.png

I'm very behind with normal modes and waves, and I need to figure out how to do this sort of question in time for my exams, so I'm hoping that you guys will be able to help me see how this can be answered.

I've answered the first part, deriving he wave equation, but for the second part I'm feeling very lost. Can someone give me a hint or nudge in the right direction for how to get started with it?
 
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Can anyone help?
 
I certainly don't know how to answer that, but seeing those second O.D.E's makes me think you might have better luck not posting this in introductory physics.
 
NewtonianAlch said:
I certainly don't know how to answer that, but seeing those second O.D.E's makes me think you might have better luck not posting this in introductory physics.

Oh, I see! Thanks for the advice, I'll try advanced physics.
 
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