You are to design a landfill for a town of 55,000 people. The landfill density is 850 lb/yd^3, cell depth is 10 ft, and 75 percent of the cell volume is MSW. Assume MSW generation at 4.5 pounds per person per day, and the city recovers and recycles 35 percent of the MSW with the rest goes to the landfill. Determine the lift area in acres required per year.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false