Two Very Small Spherical Metal Objects, Each with 1 Coulomb $\times$

question 16

Multiple Choice

Two very small spherical metal objects, each with 1 Coulomb of charge, are brought together in a vacuum so that the separation distance between their centers is 1 mm. What is the force of repulsion between the two object? (Coulomb's constant is k=9.0 $\times$ 10⁹ N^.m²/C².)

• A) 9\(\times\) 10¹² N
• B) 9\(\times\) 10¹³ N
• C) 9\(\times\) 10¹⁴ N
• D) 9\(\times\) 10¹⁵ N

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