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

The speed v of sound waves in air depends on the atmospheric presure P and density. By using the method of dimensional analysis, find an expression for v in terms of P and density.

2. Relevant equations

What I have so far;

V= density x P

I found a textbook which said that M can be ignored, as such...I end up getting

[L][T^-2]=[M^x+y] [T^-2x]

M---> 0 = x +y

y = x

L---> 1= -1x-3y

T---> T-1= -1

T = 0

It must be obvious by now that I am missing a key concept here...any help would be appricated!

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# Homework Help: Dimensional analysis

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