Suppose that the electric force between two objects is 2 N and that you then double the distance between the objects. The new force is
A) 1 N. B) 0.25 N. C) 0.5 N. D) 4 N. E) 8 N.
C
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A. They shrink and cool. B. They expand and heat up. C. They shrink and heat up. D. They expand and cool. E. Nothing. Only the interior changes.
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Classify the following statement as a characteristic
(a) of electric forces only, (b) of magnetic forces only, (c) of both electric and magnetic forces, or (d) of neither electric nor magnetic forces. The force is proportional to the magnitude of the charge of the object on which the force is exerted.
1.electric forces 2.magnetic forces 3.both electric and magnetic forces 4.neither electric nor magnetic forces