. Two-point charges Q1 = 4.5 μC and Q2 = 8.5 μC are initially very far apart. They are then brought together, with a final separation of 3.5 mm. How much work does it take to bring them together?

Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter24: Electric Potential
Section: Chapter Questions
Problem 12P: The two charges in Figure P24.12 are separated by a distance d = 2.00 cm, and Q = +5.00 nC. Find (a)...
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1. Two-point charges Q1 = 4.5 μC and Q2 = 8.5 μC are initially very far
apart. They are then brought together, with a final separation of 3.5 mm.
How much work does it take to bring them together?

2. An electron is accelerated from rest through a potential difference of 15V.
What is the change in electric potential energy of the electron?

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