Potential Energy: A +3.0-µC point charge is initially extremely far from a positive point charge Q. You find that it takes 41 J of work to bring the +3.0-µC charge to the point x = 3.0 mm, y = 0.0 mm and the point charge Q to the point x = -3.0 mm, y = 0.00 mm. What is Q? (k = …)

A. 55 nC
B. 9.1 µC
C. 4.6 µC
D. 27 pC


Answer: B

Physics & Space Science

You might also like to view...

This photograph was taken on the surface of another world in our solar system. What world is it?

A) Mars B) Venus C) the Moon D) Triton

Physics & Space Science

You would most likely find pancake-shaped lava domes on

A. Venus. B. Mercury. C. Earth. D. Mars.

Physics & Space Science

The flatness problem and horizon problem

a. are solved if there was a sudden inflation of the Universe at time before recombination occurred. b. show that the Universe can be described as static and unchanging. c. show that dark matter must be a small fraction of the total mass of the Universe. d. imply that the Universe was once much colder than it is now. e. imply that the inflationary theory is incorrect.

Physics & Space Science

Which was the last part of the planet-forming process?

A. formation of the planetesimals B. formation of the planets' core C. formation of the atmosphere of the planets D. formation of the Sun

Physics & Space Science