Laminar steady flow of a Newtonian & incompressible liquid down a circular pipe of radius R. Find: (a) Continuity and Navier-Stokes equations simplified to model this flow field. (b) Velocity profile in the pipe. (c) Shear stress distribution in the pipe. (d) Wall shear stress in the pipe. (e) Volume flow rate in the pipe as a function of the pressure drop. (f) The maximum velocity in the pipe.