Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles in liquids achieve terminal velocity quickly. One can measure the time it takes for a particle to fall a certain distance and then use Stokes' law to calculate the viscosity of the liquid. Suppose a steel ball bearing (density 7.8 x 103 kg/m3, diameter 2.6 mm) is dropped in a container of motor oil. It takes 10 s to fall a distance of 0.70 m. Calculate the viscosity (in kg/(m-s)) of the oil. kg/(m-s)
Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles in liquids achieve terminal velocity quickly. One can measure the time it takes for a particle to fall a certain distance and then use Stokes' law to calculate the viscosity of the liquid. Suppose a steel ball bearing (density 7.8 x 103 kg/m3, diameter 2.6 mm) is dropped in a container of motor oil. It takes 10 s to fall a distance of 0.70 m. Calculate the viscosity (in kg/(m-s)) of the oil. kg/(m-s)
College Physics
11th Edition
ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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Transcribed Image Text:Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles in liquids achieve terminal velocity quickly. One can measure the time it takes for a particle to
fall a certain distance and then use Stokes' law to calculate the viscosity of the liquid. Suppose a steel ball bearing (density 7.8 x 10° kg/m³, diameter 2.6 mm) is dropped in a container of motor oil. It
takes 10 s to fall a distance of 0.70 m. Calculate the viscosity (in kg/(m.s)) of the oil.
kg/(m-s)
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