OER 2016 Edition

ISBN: 9781947172173

Author: OpenStax

Publisher: OpenStax College

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The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

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Textbook Question

Chapter 5, Problem 28PE

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 × 10 3 kg/m³, diameter 3.0 mm) is dropped in a container of motor oil. It takes 12 s to fall a distance of 0.60 m. Calculate the viscosity of the oil.

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Chapter 5, Problem 27PE

Chapter 5, Problem 29PE

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Chapter 5 Solutions

College Physics

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