Small, slowly moving spherical particles experience a drag force given by stokes' law: fd = 6πηrv where r is the radius of the particle, v is its speed, and η is the coefficient of viscosity of the fluid medium.(a) estimate the terminal speed of a spherical pollution particle of radius 1.20 multiply. gif 10-5 m and density of 2182 kg/m3.cm/s(b) assuming that the air is still and that η is 1.80 multiply. gif 10-5 n · s/m2, estimate the time it takes for such a particle to fall from a height of 100 m.
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Small, slowly moving spherical particles experience a drag force given by stokes' law: fd = 6πηrv w...
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