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anonymous
 one year ago
Two identical objects each with a charge of +3.0 μC experience a repulsive force of +0.90 N between them. How far apart are the objects?
A. 0.10 m
B. 0.20 m
C. 0.30 m
D. 0.90 m
anonymous
 one year ago
Two identical objects each with a charge of +3.0 μC experience a repulsive force of +0.90 N between them. How far apart are the objects? A. 0.10 m B. 0.20 m C. 0.30 m D. 0.90 m

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2we have to apply the law of Coulomb \[F = K\frac{{{Q_1}{Q_2}}}{{{d^2}}}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok! what do we plug in? :/

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2so we can write: \[d = \sqrt {K\frac{{{Q_1}{Q_2}}}{F}} = \sqrt {9 \times {{10}^9}\frac{{3 \times {{10}^{  6}} \times 3 \times {{10}^{  6}}}}{{0.9}}} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok! and we get 0.3 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and choice C is our solution?
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