Re=pvL where is the density of the fluid, v is the velocity of the fluid, L is the characteristic length of the system, and is the dynamic viscosity of the fluid. a. Explain the difference between turbulent and laminar flow, and how they differ in microfluidic devices vs. the macro scale ( 50 words). (10 pts) b. What is the Reynolds number for water flowing at 1mm/s in a 50m tall, 200m wide microfluidic channel? (5 pts) c. What is the linear velocity necessary for flowing water in this channel to become turbulent? (5 pts) d. What is the corresponding volumetric flow rate? (5 pts)