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1. If 1.74 x1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it? -27.8 C

1. If 1.74 x1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it? -27.8 C

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. If 1.74 x1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it? 2-27.8 C Practice Another Version Viewing Saved Work Revert to Last Response 2. A 53.0 g ball of copper has a net charge of 1.9 µC. What fraction of the copper's electrons have been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.) 8.15e-13 Practice Another Version Viewing Saved Work Revert to Last Response 3. How many coulombs of positive charge are there in 6.60 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons? 2.45e+08 C Practice Another Version Viewing Saved Work Revert to Last Response
Transcribed Image Text:1. If 1.74 x1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it? 2-27.8 C Practice Another Version Viewing Saved Work Revert to Last Response 2. A 53.0 g ball of copper has a net charge of 1.9 µC. What fraction of the copper's electrons have been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.) 8.15e-13 Practice Another Version Viewing Saved Work Revert to Last Response 3. How many coulombs of positive charge are there in 6.60 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons? 2.45e+08 C Practice Another Version Viewing Saved Work Revert to Last Response
4. Two point charges exert a 8.50 N force on each other. What will the force become if the distance between them is increased by a factor of 7? 20.173 N Practice Another Version Viewing Saved Work Revert to Last Response 5. (a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece's weight. Assuming equal point charges (only an approximation), calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a 9.00 mg piece of tape held 1.40 cm above another. (The magnitude of this charge is consistent with what is typical of static electricity.) 1.39e-09
Transcribed Image Text:4. Two point charges exert a 8.50 N force on each other. What will the force become if the distance between them is increased by a factor of 7? 20.173 N Practice Another Version Viewing Saved Work Revert to Last Response 5. (a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece's weight. Assuming equal point charges (only an approximation), calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a 9.00 mg piece of tape held 1.40 cm above another. (The magnitude of this charge is consistent with what is typical of static electricity.) 1.39e-09
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