13. A mercury drop on a clean horizontal glass surface and a water drop on a horizontal glass plate coated with a thin layer of talcum powder are similar in shape. If it is known that for a particular shape of a drop. surface energy of surface tension and the gravitational potential energy bear a definite ratio that is independent of the size of the drop, estimate the ratio masses of these drops. Density of mercury is PH = 13.60 g/cm3, density of water is pw= 1.00 g/em3, surface tension of mercury is ou =0.46 N/m and surface tension of water is ow = 0.07 N/m. %3D

13. A mercury drop on a clean horizontal glass surface and a water drop on a horizontal glass plate coated with a thin layer of talcum powder are similar in shape. If it is known that for a particular shape of a drop. surface energy of surface tension and the gravitational potential energy bear a definite ratio that is independent of the size of the drop, estimate the ratio masses of these drops. Density of mercury is PH = 13.60 g/cm3, density of water is pw= 1.00 g/em3, surface tension of mercury is ou =0.46 N/m and surface tension of water is ow = 0.07 N/m. %3D