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The Repulsive Force (F) Between the North Poles of Two

Question 8

Multiple Choice

The repulsive force (f) between the north poles of two magnets is inversely proportional to the square of the distance (d) between them. If the repulsive force is 10 lb when the distance is 16 in., find the repulsive force when the distance is 8 in.


A) 40 lb
B) 60 lb
C) 20 lb
D) 5 lb
E) 2 lb

Correct Answer:

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