SOLUTION: 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 21 lb when the distan
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Question 858964: 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 21 lb when the distance is 15 in., find the repulsive force when the distance is 5 in. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! 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 21 lb when the distance is 15 in., find the repulsive force when the distance is 5 in.
:
f =
find k, f=21; d=15 = 21
k = 21*225
k = 4725
Find f when d=5
f =
f = 189 lb
