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