Can Two Repelling Spheres Be Solved?

[duhduhduh]

Solved.

 

[TSny]

Electrostatic forces obey Newton's third law. Based on this, fill in the blank:

Suppose Q = 2q. If Q exerts an electrical force of 2.0 N on q, then q exerts an electrical force of ______ N on Q.

 

[box543]

2q because the forces must be equal. Doesn't this agree with my answers?

Or does it mean that the charges can be anything as long as the force remains constant, in which case the answers would be:

True
False
True
True
True

 

[TSny]

One of your answers is still wrong. Hint: If the electrical forces are equal, then how can X hang at the smaller angle?

 

[box543]

It must have a greater mass, so the mass one is false.

Thank you so much!

 

[berkeman]

Solved.

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