Liquid water at 50°F, 14.7 psia enters a system composed of a pump and attached piping with a velocity of 20 ft/s. The water exits at a point that is 30 feet above the inlet at 200 psia, a velocity of 10 ft/s, and with no significant change in temperature. Determine the power input (in Btu/lb) required by the system in the absence of internal irreversibilities.