Estimate the mixing power (Pm) in watt of a motor needed to mix water in a rapid mixing tank if the volume of the tank is 6.1 m3, motor energy transmission efficency E = 0.8, viscosity µ is 0.89 × 10-3 kg/m.s and the velocity gradient G is 944 (round your answer to the nearest whole number)

Estimate the water depth (Hw) in meters of a rapid mixing tank with a water volume of 7.9, a square cross section with width, Ww and a water depth equal to116% of Ww