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View Full Version : Pressure nodes and displacement nodes


vicki345
Mar3-10, 05:13 AM
Hello, this is my first post and hopefully I've posted to the right area...

I know that a pressure node in a standing soundwave is at the same place as a displacement anti node, and vice versa, and could explain it physically, I just would like to show it mathematically. I assume it will have something to do with the fact that the derivative of a soundwave is a cos wave... Maybe using Bernoulli's equation?

I would appreciate some help with where to start.

Many thanks