5. Laboratory compaction test results for a clayey silt are given in the following table. Dry unit weight (kN/m3) 14.80 17.45 18.52 18.9 18.5 16.9 Moisture content (%) 6 8 9 11 12 14 Following are the results of a field unit-weight determination test performed on the same soil by means of the sand cone method: • Calibrated dry density of Ottawa sand 1570 kg/m3 • Calibrated mass of Ottawa sand to fill the cone 0.545 kg • Mass of jar cone sand (before use) 7.59 kg • Mass of jar cone sand (after use) 4.78 kg • Mass of moist soil from hole 3.007 kg • Moisture content of moist soil 10.2% Determine: a. Dry unit weight of compaction in the field

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Weight is defined as the quantity of matter contained in a body. Weight can also be defined as the force acting on a body due to gravity. Mathematically, weight can be defined as-