Physics, 09.10.2019 04:10 drpharmd1769
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 ✕ 103 kg/m3, diameter 2.4 mm) is dropped in a container of motor oil. it takes 10 s to fall a distance of 0.75 m. calculate the viscosity (in kg/(m·s)) of the oil.
Answers: 3
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Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n
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Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?
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Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. pa...
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