a$)$ what is the friction factor in pipe?

b$)$ what is the headloss in $($m$)$ due to friction in the pipe? Use Darcy$-$Weisbach Equation

c$)$ The liquid in the manometer has a specific gravity of $2\mathrm{.}5.$ Determine the deflection in manometers $($change in h in meters $)$

Water at $20C$ flows through the cast iron pipe. $Q=\mathrm{.}06$ cumecs.