A horizontal pipe of diameter 0.879 m has a smooth constriction to a section of diameter 0.5274 m. The density of oil flowing in the pipe is 821 kg/m^3. If the pressure in the pipe is 8670 N/m^2 and in the constricted section is 6502.5 N/m^2, what is the rate at which oil is flowing? Answer in units of m^3/s.
