Sea water (density= 1025kg/m^3 , dynamic viscosity= 0.00108 Pa/s) is pumped through a granite tunnel, Ø2m and 400m long with wall roughness ks = 2mm, to a holding reservoir tank that holds sea water at a depth 10m above sea level. Google budgets for an energy consumption of the pump for this system of 2MW. If the pump 1 has an efciency of n= 87%, what is the ow rate of sea water through this tunnel?