EBK PHYSICS FOR SCIENTISTS AND ENGINEER
6th Edition
ISBN: 9781319321710
Author: Mosca
Publisher: VST
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Chapter 22, Problem 34P
To determine
The flux of the gravitational field through a spherical surface of radius
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In the first decade of the 20th century Jean Perrin carried out important investigations on the sedimentation, in the gravitational field, of particles of gamboges, mastic, and other paint pigments. Consider particles of density 1.2 g.cm-3 and of the following radii: (a) 1 mm, (b) 10 \muμm, and (c) 10 nm. In each case, assuming Stokes’s law to apply, estimate the distance the particle would sediment in 1 hour, in water at 20oC (\etaη = 1.002 x 10-3 kg.m-1.s-1 and ρ = 0.998 g.cm-3). Which of the particles would have the longest sedimentation distance? Which of them would have the shortest sedimentation distance?
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With density Y1(unit: kg/m), 3 endless wires are just above the x,y,z axes.
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A hint is given in the figure.
Chapter 22 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
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