Someone siphoned \(15 \mathrm{gal}\) of gasoline from a gas tank in the middle of the night. The gas tank measures 12 in. wide \(\times 24\) in. long \(\times 18\) in. high and was full when the thief started. If the siphoning tube has an inside diameter of \(\frac{1}{2}\) in., find the minimum amount of time needed to siphon the \(15 \mathrm{gal}\) from the tank. Assume that at any instant of time the steady-state equations are adequate to predict the gasoline velocity in the siphon tube. Also assume that the end of the siphon tube outside the gas tank is at the same level as the bottom of the tank. You may consider the gasoline to be inviscid.