how do you rearrange 1.1513/sqrt(f)=ln(Re*sqrt(f)/2.51)
to get it in terms of f and also rearrange it in terms of Re?
if you identify an initial estimate of the solution for f when Re=5000 how do you plot on a scatter graph (using something like 0 to 0.1 in increments of 0.01) to identify an initial guess of f?