Gasoline (density = 680 kg/m^3 and kinematic viscosity = 4.29x10^-7 m^2/s) is transported at a rate of 150 L/s for a distance of 2 km. The surface roughness of the piping is 0.03 mm. If the head loss due to pipe friction is not to exceed 10 m, determine the minimum diameter of the pipe.