the answer is 0.0056 m3 /s

pls show clear steps on how to get there

A sump pump is used to pump water (=1000kg/m3,=1103Pas) from a collection basin in the basement of a house away from the foundation. The installation shown below uses 15m of 4cm diameter galvanized iron pipe with two threaded 90 smooth bends and a reentrant inlet to raise the water to a height of H=8m. The pump characteristic curve can be approximated by hp=454000V, where V is in [m3/s] and hp is in [m]. Water in the basin is open to atmosphere and is discharged to atmospheric pressure outside of the house. The cross-sectional area of the basin is much larger than that of the pipe. Accounting for both pipe losses and minor losses, calculate the volume flow rate of water that the system can remove