Water at 30 degrees C flows through a horizontal pipe (1 inch inside diameter), in which the pressure drop is to be limited to 0.015 lbf/ft^2 per foot of length. This low pressure per foot is imposed by the excessively long line involved. Calculate the volume flow rate (ft^3/s), the mass flow rate (lbm/s), the average and maximum velocities (ft/s), and the velocity distribution Uz as a function of r.