Nearly 1 billion people do not have access to clean, safe, drinking water. In many countries, women and children walk for hours to bring water back to their homes. The water they are able to bring is dirty and often carries disease. Identify two criteria or constraints that would apply to a possible solution for providing clean, safe water to a community.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.