An oil gusher shoots crude oil 23.0 m into the air through a pipe with a 0.100 m diameter. Neglecting air resistance but not the resistance of the pipe, and assuming laminar flow, calculate the pressure (in N/m2) at the entrance of the 45.0 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 (or 1.00 Pa · s). Note that you must take into account the pressure due to the 45.0 m column of oil in the pipe.

Air (ρa = 0.08 lbm/ft3) flows through a furnace where it is burned with fuel toproduce a hot gas (ρg = 0.05 lbm/ft3) that flows up the stack, as shown in the following figure.The pressures in the gas and the immediately surrounding air at the top of the stack at point Aare equal. What is the difference Δh (in.) in water levels in the manometer connectedbetween the base B of the stack and the outside air at point C? Which side rises? Except forthe pressure drop across the furnace (which you need not worry about), treat the problem asone in hydrostatics. That is, ignore any frictional effects and kinetic energy changes in thestack. Also, you can neglect compressibility effects and assume that the density of gas isconstant.