The hydraulic gradient for quicksand condition is equal to 1.27 with a void ratio of 0.46. The moist unit weight of soil is 20.10 KN/m³. Compute the dry unit weight of soil in N/m³.

Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1=d2=d3=0.52 m. Head difference is 0.92 m. Inflow Outflow Soil A Soil B Soil C -d1- -d2- Coefficient of Permeability for Each Soil: Soil A Kax 2.99 x 10-² cm/s Soil A Kaz 1.44 x 10-³ cm/s Soil B Kbx 1.63 x 10-2 cm/s Soil B Kbz 2.22 x 10-³ cm/s Soil C|Kcx|3.15 x 102 cm/s Soil C Kcz 3.17 x 10-3 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places.

Consider two horizonal soil layers, each is isotropic, the upper layer 1 is sitting directly on the top of bottom layer 2. Layer 1 has a thickness of 2 m and a hydraulic conductivity of 0.26 m/day and layer 2 has a thickness of 4 m and a hydraulic conductivity of 0.95 m/day. In this case, calculate the equivalent horizontal hydraulic conductivity in m/day.

Answer in three decimal places please