Task id13401
A wire of radius r1 = 1 mm is pulled at a constant speed v0 = 10 cm/s along the axis of a tube of radius r2 = 1 cm, which is filled with a liquid of viscosity h = 0.01 P. Determine the friction force f per unit length of the wire. Find the distribution of fluid velocities along the radius of the tube.
Answer. Format gif
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