Good day. I was wondering if you could help me solve this first order linear partial differential equation:
[∂δ]/[/∂t] = [ρg]/[/μ] δ^2 [∂δ]/[/∂z].
The solution for this is:
δ(z, t) = √[μ z]/[/ρg t].
I don't really understand how the PDE became like this. If you could show the...