Because the charges on the electron and proton have the same absolute value, atoms are electrically neutral. Suppose that this is not precisely true, and the absolute value of the charge of the electron is less than the charge of the proton by 0.00100%. Estimate what the net charge of this textbook would be under these circumstances. Make any assumptions you feel are justified, but state clearly what they are. ( Hint: Most of the atoms in this textbook have equal numbers of electrons, protons, and neutrons.) What would be the magnitude of the electric force between two textbooks placed 5.0 m apart? Would this force be attractive or repulsive? Discuss how the fact that ordinary matter is stable shows that the absolute values of the charges on the electron and proton must be identical to a very high level of accuracy.
Because the charges on the electron and proton have the same absolute value, atoms are electrically neutral. Suppose that this is not precisely true, and the absolute value of the charge of the electron is less than the charge of the proton by 0.00100%. Estimate what the net charge of this textbook would be under these circumstances. Make any assumptions you feel are justified, but state clearly what they are. ( Hint: Most of the atoms in this textbook have equal numbers of electrons, protons, and neutrons.) What would be the magnitude of the electric force between two textbooks placed 5.0 m apart? Would this force be attractive or repulsive? Discuss how the fact that ordinary matter is stable shows that the absolute values of the charges on the electron and proton must be identical to a very high level of accuracy.
Because the charges on the electron and proton have the same absolute value, atoms are electrically neutral. Suppose that this is not precisely true, and the absolute value of the charge of the electron is less than the charge of the proton by 0.00100%. Estimate what the net charge of this textbook would be under these circumstances. Make any assumptions you feel are justified, but state clearly what they are. (Hint: Most of the atoms in this textbook have equal numbers of electrons, protons, and neutrons.) What would be the magnitude of the electric force between two textbooks placed 5.0 m apart? Would this force be attractive or repulsive? Discuss how the fact that ordinary matter is stable shows that the absolute values of the charges on the electron and proton must be identical to a very high level of accuracy.
This equation is of the electric charge of a uniform disk which is charged at point z which is perpendicular to the center of the disk. (z=0 is part of the plane of the disk).
R= radius of disk, Q= total charge of disk, k= coulomb's constant.
If k=1 units, Q=1 units, R=8 units, what is Edisk, z when z=6 units?
Number 1 part a b and c
1. The element gold, 797 Au, has a density of 19300kg/m?.
(a) How many electrons are there in 15g of gold? (Assume that it is no net charge).
(b) If this 15g is given a net charge of 25uC, approximately how many electrons were removed?
(c) Approximately what fraction of the total number of electrons were removed?
The electric field vector is given by E=[0.2, –0.6, 0.3] V/m and Area vector points to A=[–4, 3, -5] m^2. What is the angle between the E-field and Area vector in degrees? Answer with two decimal places.
note: convert answer to milli
Chapter 21 Solutions
University Physics with Modern Physics, Books a la Carte Edition; Modified MasteringPhysics with Pearson eText -- ValuePack Access Card -- for ... eText -- Valuepack Access Card (14th Edition)
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8.02x - Lect 1 - Electric Charges and Forces - Coulomb's Law - Polarization; Author: Lectures by Walter Lewin. They will make you ♥ Physics.;https://www.youtube.com/watch?v=x1-SibwIPM4;License: Standard YouTube License, CC-BY