1. Glycerin at 20 °C flows upward in a vertical 75-mmdiameter pipe with a centerline velocity of 1.0 m/s. Determine the head loss and pressure drop in a 10-m length of the pipe.
2. A large artery in a person's body can be approximated by a tube of diameter 9 mm and length 0.35 m. Also assume that blood has a viscosity of approximately 4 × 10-3 N · s/m2, a specific gravity of 1.0, and that the pressure at the beginning of the artery is equivalent to 120 mm Hg. If the flow were steady (it is not) with V = 0.2 m/s, determine the pressure at the end of the artery if it is oriented
(a) vertically up (flow up) or
(b) horizontal.