a) (18 pts) Define/illustrate the shell and use an appropriate shell momentum balance to show that the velocity profile containing integration constants. 2. (30 pts + 5 pts bonus) At

ambient conditions, water is pumped through a microscale channel as shown in the figure below. The microchannel is 500 um in width (W), 50 µm in height (2H) and 2 cm in length (L). End effects may be neglected because of H<