The profile of a soil consists of a soil layer 3.9 meters below the ground surface. The weight of the soil is 19.59 KN/m³. The water table is located 1.9 below the ground surface. The angle of friction of the soil 21° and a cohesion of 28 KPa. The saturated unit weight of soil below the water table is 18.13 KN/m³. Compute the neutral stress in KPa at a depth of 3.9 meters below the ground surface.

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