A gas containing particles has a flow rate of 7 cubic meters per second. The gas enters a cyclone of standard proportions of inside diameter Do = 2.0m and it is given that gas temperature is 77 C (2.1*10^-5 kg/m*s). The particles are of 10-m diameter and have a specific gravity of 1.50. Determine: (a) Area of entrance to the cyclone; (b) Dcut & Dp/Dcut; and (c) removal efficiency.