Assuming fully developed flow, the pressure drop (in Pa) in the pipe is ______

Question

Water flows through a 10mm diameter and 250 m long smooth pipe at an average velocity of 0.1m/s. The density and the viscosity of water are 997kg/m³ and 855$\times$10⁶N.s/m², respectively. Assuming fully developed flow, the pressure drop (in Pa) in the pipe is ______