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

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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An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.

Question

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 mol-¹, e--1.6.10-¹9 C, M-63.5 g/mol)
1) 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)3,29.10.7 %
d)3,59.10-7%
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

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