Physics

The strength of attraction, Fm, between two magnets can be described as Fm~1/d2. You separate the two magnets from d=1 cm to d=7 cm.

a) Does the strength of attraction increase or decrease?

-decrease
-increase

b) By what factor does Fm change?
-1/36
-49
-36
-1/49
-6
-1/6
-1/7
-7

  1. 👍
  2. 👎
  3. 👁
  1. decrease; 1/49

    1. 👍
    2. 👎

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