SOLVED:The stem of a glass hydrometer used to measure specific gravity is 5 mm in diameter. The distance between marks on the stem is 2 mm per 0.1 increment of specific gravity. Calculate the magnitude and direction of the error introduced by surface tension if the hydrometer floats in kerosene. (Assume the contact angle between kerosene and glass is 0^∘.)

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The hydrometer shown in Figure P12.67 floats at a level that is a measure of the specific gravity of the liquid. The stem is of constant diameter, d, and a weight in the bottom bulb stabilizes the body. The total hydrometer weight is 0.375  N and the stem diameter is 0.08  m. Determine the height at which the device floats when the liquid has a specific gravity of 1.20(FIGURE CAN'T COPY) | Numerade

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