A gravity-driven flow system is used to feed oil from tank (A) into a second tank (B). The elevation difference between the tanks is 55 m. The system also includes 110 m of galvanized iron piping with 2 bends (90) and a wide-open globe valve. The density and dynamic viscosity are = 820 /3 and = 0.0239 / , respectively. =1.1 for sharp edged entrance, =0.05 for the exit, =0.5 for bends (90), and =10 for the wide-open globe valve. The diameter and roughness of the pipe are 80 mm and = 0.00015 ,respectively. If the flow rate is 0.026 3/, calculate the pressure drop between the two tanks.