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Physics, 08.10.2019 05:10 saabrrinnaaa

Suppose a gust of wind has carried a 44-μm-diameter dust particle to a height of 310 m. if the wind suddenly stops, how long will it take the dust particle to settle back to the ground? dust has a density of 2700 kg/m3, the viscosity of 25∘c air is 2.0×10−5 n⋅s/m2, and you can assume that the falling dust particle reaches terminal speed almost instantly.

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Suppose a gust of wind has carried a 44-μm-diameter dust particle to a height of 310 m. if the wind...

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