If the friction factor for a

$250$ mm

$($

$10$in

$.)$ waterline is $0\mathrm{.}030,$ and the shearing stress in the water

$50$ mm$(2$in

$.$

$)$fromthepipecenterlineis$14$ Pa$(0\mathrm{.}3$lb$/$ft

$2$

$)$

$,$ what is the flowrate?