1. A viscous fluid flows in a 0.10-m-diameter pipe such that its velocity measured 0.012 m away from the pipe wall is 0.8 m/s. If the flow is laminar, determine the centerline velocity and the volumetric flow rate.
2. Water flows through a 6-in.-diameter horizontal pipe at a rate of 2.0 ft3 /s and a pressure drop of 4.2 psi per 100 ft of pipe. Determine the friction factor.