North Dakota A+ Science Grade 10 Practice Questions - North Dakota A+ Summative Science - Grade 10 Exam

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Two charged spheres are separated by a distance r and exert an electrostatic force F on each other. If the distance between them is halved (to r/2) while the charges stay the same, what is the new force?

The new force is 4F. The new force is 2F. The new force is F/2. The new force is F/4.

Correct Answer:

The new force is 4F.

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