A hydrometer is a specific gravity indicator, the value being indicated by the level at which the free surface intersects the stem when floating in a liquid. The 1.0 mark is the level when in distilled water. For the unit shown, the immersed volume in distilled water is \(15 \mathrm{~cm}^{3}\). The stem is \(6 \mathrm{~mm}\) in diameter. Find the distance, \(h\), from the 1.0 mark to the surface when the hydrometer is placed in a nitric acid solution of specific gravity 1.5 .

h Nitric acid P3.69