In the pipe system shown below the pipe has a diameter of $25cm,$ and it is $585m$ long

from $A$ to $S.$ The equivalent roughness height of the pipe, e$,$ is $0\mathrm{.}20mm.$ The kinematic

viscosity is $n=1\mathrm{.}1310-6m\frac{2}{s}.$ The minor head loss coefficients are: $Ke=0\mathrm{.}5$ for

entrance losses, and $Kd=1\mathrm{.}0$ for exit losses. The water surface elevations are $h1=750$

$m,$ and $h2=640m.$ The discharge is $Q=485\frac{L}{s}.$

Determine the pressure head at $S$ in $m.$

Diameter $of$ Pipe, $D=25cm$

Length from $AtoS=585m$

Pipe roughness, $e=0\mathrm{.}20mm$

Total head $in$ reservoir $A=750m$

Total head $in$ reservoir $B=640m$

Elevation head $atS=720m$

$Q=485\frac{L}{s}$

Report $3-5$ sig figs, don't include units

if L$/$D is larger than $1000$ ignore minor losses.

Apply the energy eq'n

find f using Haaland equation