Air (ro = 1.23 kg/m^3, Mu = 1.79 x 10^-5 kg/m.s) flows through 4.0 mm diameter brass tube with velocity V=50m/s. Under these conditions flow is expected to be turbulent, but for a clean air, very smooth enterance (with guided vanes) to the tube and no tube vibration, it may be possible to maintain laminar flow. Determine the pressure drop in a 0.100m length assuming. a. Laminar Flow b. Turbulent flow.