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anonymous
 one year ago
two point charges of +5.0 * 10^5 C and 5.0 * 10^5 C are separated by 0.50 m. Which of the following describes the force between them?
A. 90 N , attractive
B. 45 N, repulsive
C. 45 N , attractive
D. 90 N , repulsive
anonymous
 one year ago
two point charges of +5.0 * 10^5 C and 5.0 * 10^5 C are separated by 0.50 m. Which of the following describes the force between them? A. 90 N , attractive B. 45 N, repulsive C. 45 N , attractive D. 90 N , repulsive

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1that force is attractive, since the charge have opposite sign

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes:) how can we find if it is 45 or 90?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1furthermore, we have to apply the Coulomb law: \[\Large F = K\frac{{{Q_1}{Q_2}}}{{{r^2}}} = 9 \times {10^9}\frac{{5 \times {{10}^{  5}} \times 5 \times {{10}^{  5}}}}{{{{\left( {0.5} \right)}^2}}}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so we get 90? so option A is our solutoin?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yay!:)thanks!! okay onto the next! :P
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