143. Solving a chemistry problem

3.6. Bentonite particles with a dispersion of D = 0.8 μm – 1 settle in the aquatic environment under the action of gravity. Determine the settling time 1 at a distance h = 0.1 m, if the density of bentonite p = 2.1 g / cm3, the density of the medium p0 = 1.1 g / cm3, the viscosity of the medium n = 2 * 10 ^ –3 Pa * s . How many times faster will particles settle down at the same distance in a centrifugal field if the initial distance from the axis of rotation is h0 = 0.15 m and the centrifuge’s rotation speed is n = 600 r / s?