Substituting n = 20, we obtaina20 = 20\(\frac{(20-2)}{20+3}\)
= 20\(\frac{(18)}{23}\)
= \(\frac{360}{23}\)
Figures 9.20(a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why ?