1.The surface tension of a liquid is being measured with a run as show. Outside diameter is 10 cm and inner diameter is 9.5cm. The Mass of the ring is 16g. The force required is the weight corresponding to a mass of 16g. What's the surface tension of the liquid?
2.A ditch having a cross-sectional area of 50 square feet is being excavated in common earth. The soil’s angle of repose is 35° and its swell is 25%. Find the height and the width of the triangular soil bank that will result from the trench excavation
3.A sample of natural glacial till was taken from below the groundwater table. The water content was found to be 52%. Estimate the wet density, dry density,buoyant density, porosity, and void ratio. Clearly state any necessary assumptions.