104. In copper there is approximately one free electron for each atom. A copper coin has a mass of m=3 g. (k=9.10° N.m²/C2, NA=6.02.1023 mol¹, e--1.6.10:¹9 C, M=63.5 g/mol) I) What percentage of the free charge would have to be extracted from the currency for it to acquire a charge of q=15 uc? a)2,69.107 % b)2,99.107 % c)3,29.107 % d)3,59.107 % e)3,89.107 % II) What would be the force of repulsion between two coins that have this charge, if they were separated by a distance of d = 25 cm? (Assume currency as a point charge) (a)30.4 N b)32.4 N (c)34.4 N (d)36.4 N (e)38.4 N

104. In copper there is approximately one free electron for each atom. A copper coin has a mass of m=3 g. (k=9.10° N.m²/C2, NA=6.02.1023 mol¹, e--1.6.10:¹9 C, M=63.5 g/mol) I) What percentage of the free charge would have to be extracted from the currency for it to acquire a charge of q=15 uc? a)2,69.107 % b)2,99.107 % c)3,29.107 % d)3,59.107 % e)3,89.107 % II) What would be the force of repulsion between two coins that have this charge, if they were separated by a distance of d = 25 cm? (Assume currency as a point charge) (a)30.4 N b)32.4 N (c)34.4 N (d)36.4 N (e)38.4 N

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter15: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 39P: Refer 10 Figure 15.20. The charge lowered into the center of the hollow conductor has a magnitude of...

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