Problem 20216.
Determine the surface tension coefficient of mercury if the level difference in its elbows of a U-shaped tube is 30 mm. The channel diameters in the tube elbows are 2 and 0.4 mm, respectively. The density of mercury is 13.6*10^3 kg/m^3. Free fall acceleration 9.81 m/s^2. Non-wetting is considered complete.
A detailed solution with a brief note of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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