1.A sphere L ft in diameter is moving horizontally at a depth of 12 ft below a water surface where the water temperature is 50°F. v max = 1.5 V0. where V0. is the free stream velocity and occurs at the maximum sphere width. At what speed in stillwater will cavitation first occur?
2.The asphalt conent of a mix is 5.7%, expressed as a percentage of aggregate. Find the percentage of Air voids and voids in the mineral aggregate if the asphalt absorption is .5%, and the specific gravities of the aggregate and binder are 2.660 and 1.020 respectively. The unit weight of the mixture is 2.39 Mg/m^3