2. Rotating cone pump, Assume the rectangular coordination in the small gap (2B). And r = 2nzsin, the gravitational force combined with the centrifugal force can be substitute by egcosB +pzsinB 2.1 write down the continuity and Navier-Stoke equations (3 pts) 2.2 write down the boundary condition (2 pts) 2.3 calculate find the mass rate of flow through this pump. (6 pts) Pressure pa 2B AZ Pressure pa (poundals ft) Direction of flow with mass rate of flow w (bm/s)