$6\mathrm{.}113$ The parallel galvanized$-$iron pipe

system of Fig. P$6\mathrm{.}113$ delivers water at

$20C$ with a total flow rate of $0\mathrm{.}036\frac{m^3}{s}.$ If

the pump is wide open and not running, with

a loss coefficient $K=1\mathrm{.}5,$ determine $($a$)$ the

flow rate in each pipe and $($b$)$ the overall

pressure drop.

Fig. P$6\mathrm{.}113$