Identify which one of the five sources of power should be a priority for development in agriculture, and justify the selection by explaining the advantages and disadvantages of this power source.

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.

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

What is creep? what is stress relaxation?