Question

An oil gusher shoots crude oil 29.0 m into the air through a 0.100 m diameter pipe. Neglecting air resistance but not the resistance of the pipe, and assuming laminar flow, calculate the pressure at the entrance of the 55.0 m long vertical pipe. Take the density of the oil to be 900 kg/m3 and its viscosity to be 1.00 (N/m2)·s. Note that you must take into account the pressure due to the 55.0 m column of oil in the pipe.