please finish this with all the steps.

3. In a vegetable refining process, the aqueous phase is being separated from the oil phase in a centrifuge. The radius for the overflow of the light liquid is set at 10.160mm and the outlet for the heavy liquid is set at 10.414mm. You decide to measure the density of both the aqueous and oil phases using an uncalibrated hydrometer. The hydrometer consists of a composite glass rod 150mm long and 15mm in diameter. You place the hydrometer on a balance and find it weighs 20.800g. The hydrometer has markings along its length going from 0.0000 to 1.0000. When you place the hydrometer in the oil phase, it settles in the liquid and reads 0.8533. When placed in the aqueous phase it reads 0.8004. a) Determine the density of the two phases, and b) Calculate the location of the interface in the centrifuge