1.A fine sand has an in-place unit weight of 18.85 kN/m^3 and a water content of 5.2%. The specific gravity of solids is 2.66. Void ratios at densest and loosest conditions are 0.38 and 0.92, respectively. Find the relative density.
2.how do you classify a structure as Determinant, indeterminate (and degree of indeterminacy), or unstable? how do hinges play a part in the degree of indeterminacy?
3.If the design speed of a multilane highway is 60 mph, what is the minimum sight distance that should be provided on the road if (a) the road is horizontal and (b) the road has a maximum grade of 5%? Assume the perception/reaction time is 2.5 seconds. Any help here?