Flow Rate Problem - Please Help! 1. The problem statement, all variables and given/known data: SAE no. 10 oil has a viscosity of 0.2 Pa· s. How long (in sec) would it take to pour 6 liters of oil through a funnel with a neck 12 cm long and 2.6 cm in diameter. Assume that it is poured in such a way that the oil level is kept just above the top of the tube. Hint: The specific gravity (= ratio of its density to that of water) of the oil is 0.70. 2. Relevant equations The pressure difference is given by Dp = rgL 1000 liter = 1 m^3 = 10^6 cm^3 The flow rate is given by Poiseuille's law: Q = p * r^4 * Dp / 8*h*L 3. The attempt at a solution You can calculate the pressure difference: Dp = rgL Dp = (700 kg/m^3)(9.81 m/s^2)(0.0012 m) Dp = 82.4 Pa And the time it takes for the oil to flow through is the volume of the oil divided by the flow rate: t = V / Q = 8 * V * h * L / (p * r^4 * Dp) t = 8 (0.006 m^3)*(0.2)*(0.012 m) / p * (0.5)*(0.013 m)^4 * (82.4 Pa) t = 8.97 X 10^-9 But I know that can't be right. Can someone please help me with where I went wrong? And try to explain it to me?