1.A confined aquifer has a specific storage of 2.5*10^-6 ft^-1 and a thickness of 200 ft. How much water would it yield if the water declined 5.5 ft uniformly over a circular area with a radius of 1000 ft?
2.A 1.20-m thick strata of sand has a void ratio of 1.81. A contractor passes a vibratory roller over this extra strata, which densifies it and reduces its void ratio to 1.23. Compute its new thickness.
3.A saturated soil has a moisture content of 38.0% and a specific gravity of solids of 2.73. Compute the void ratio, porosity and unit weight (lb/ft3 or kN/m3) of this soil.