a 3-inch schedule 40 commercial steel pipe carries sae 40 crankcase oil at 210 0f at the rate of 6.0 gal/min. the oil specific gravity is 0.89 and the viscosity is 6.6 x 10-7 lbf.sec/in2. for the same pressure drop, what must the new pipe size be to carry the oil at the rate of 10.7 gal/min?