Task 20802.
A layer of air 2 cm thick is dragged around the wing of the flying aircraft due to viscosity. The tangential force acting on each square meter of the wing surface is 5 * 10 ^ -2 N. Find the speed of the aircraft. The diameter of the air molecule is assumed to be 0.3 nm, the ambient temperature is 50 ° C. The molar mass of air is 0.029 kg / mol.
A detailed solution with a brief entry of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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