A pipe 10 feet long has an outside diameter of 2 inches and a 1 mm thick wall. The yield stress of the wall material is 5E10 lbf/in^2 in tension, 1.5x10^3 lbf/in^2 in compression, and 1x10^3 lbf/in^2 in shear.
If the pipe is placed in a 50 mi/hr crosswind (wind direction perpendicular to the axis of the cylinder), calculate the Reynolds number for the flow of air over the outside of the cylinder (using properties of air)