Footing: This is a 3 m wide strip footing, located on the ground surface of an isotropic, homogeneous layer of soil. The footing places a uniform load of 50 kPa on the ground surface. The unit weight of the soil

is 1,800 kg/m3

and the depth to ground water is 3 m below the ground surface.

Calculate, tabulate and plot all three relevant stress variations – total overburden stress, effective

overburden stress, and final effective vertical stress – on a pressure vs depth diagram

The temperature of air decreases as it is compressed by an adiabatic compressor. 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.

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.