8. Consider laminar viscous flow over a flat plate. We will earn later in the course that the skin friction coefficient Cf is given by Cf = 0.664 / (Rex)0.5 where Rex is the Reynold number based on the distance from the leading edge of the flat plate x, and is defined as Rex = [infinity]U[infinity]x/[infinity] . Here [infinity] is freestream density, U[infinity] is the freestream velocity, and [infinity] is the molecular viscosity. a) Integrate Cf over the non-dimensional