Two red blood cells each have a mass of 1.55 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. The repulsion arising from the excess charge prevents the cells from clumping together. Once cell carries -1.60 pC of charge and the other -3.10 pC, and each cell can be modeled as a sphere 7.60 µm in diameter. What minimum relative speed v would the red blood cells need when very far away from each other to get close enough to just touch? Ignore viscous drag from the surrounding liquid.

Two red blood cells each have a mass of 1.55 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. The repulsion arising from the excess charge prevents the cells from clumping together. Once cell carries -1.60 pC of charge and the other -3.10 pC, and each cell can be modeled as a sphere 7.60 µm in diameter. What minimum relative speed v would the red blood cells need when very far away from each other to get close enough to just touch? Ignore viscous drag from the surrounding liquid.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter26: Electric Potential

Section26.3: Electric Potential Energy

Problem 26.3CE: A water molecule is made up of two hydrogen atoms and one oxygen atom, with a total of 10 electrons...

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