Задача id16699

Estimate the steady-state settling rate of dust particles in a room with a height of l=2.8 m and the settling time. The minimum diameter of dust particles is 2r=0.06 mm. The viscosity of air at 20 °C is y=1.8·10-5 Pa-s, the density of dust particles is p=2·103 kg/m3.

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