THis is more of a proof problem. I worked the problem up until the point where it begins a replacement for r/R.(adsbygoogle = window.adsbygoogle || []).push({});

The book has enough examples to understand it up until that point.. but then it jumps from radii to simply the n term.

I got a copy of the solution from the professor and I just don't get why they do that. I can't integrate that function in any way to get that new n-based equation.

Any ideas on what's going on? I cant find anything in the book on that.

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# Homework Help: Fluids - ME315

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