Three identical point charges Q are placed at the vertices of an equilateral triangle (length of each side = 2.0 m). If Q = 60 ?C, what is the magnitude of the electrostatic force on any one of the charges?
a. 25 N
b. 19 N
c. 14 N
d. 22 N
e. 16 N
c
You might also like to view...
Why does Mars have more extreme seasons than Earth?
A) because it is farther from the Sun B) because it has a larger axis tilt C) because it has a much more eccentric orbit D) because it has more carbon dioxide in its atmosphere E) all of the above
How tall must a plane mirror be in order for you to be able to see your full image in it?
A) the same height as you B) 1/4 of your height C) half of your height D) 3/4 of your height E) twice your height
The special theory of relativity predicts that there is an upper limit to the speed of an object. It therefore follows that there is also an upper limit on which of the following properties of the object?
(There could be more than one correct choice.) A) The kinetic energy of the object. B) The total energy of the object. C) The linear momentum of the object. D) None of the above.
The orbits of Population II stars have been compared to:
A) planets around the Sun. B) satellites around planets. C) comets around the Sun. D) binary stars. E) the accretion disk around a black hole.