a$)$ A $1000ft,6$in diameter pipe carries a flow of $0\mathrm{.}6cfs.$ The total energy head at the

inlet is $80ft($from datum$)$ and the pipe elevation and pressure at the outlet is $12ft$

$($from same datum$)$ and $18,$ respectively. What is the energy loss through the pipe?

b$)$ A fire hydrant is supplied by a $6$ in cast$-$iron pipe, which is $10,000ft$ long. The total

change in head along the pipe is limited to $35$ psi. Using Darcy$-$Weisbach equation,

what is the flowrate of water at $60F?$