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3 March, 09:24

The magnitude of the electrical force acting between a + 2.4 * 10-8 C charge and a + 1.8 * 10-6 C charge that are separated by 0.008 m is N, rounded to the tenths place.

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  1. 3 March, 12:42
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    Use Coulomb law: F = k * q1*q2 / (r^2), where k = 9.00 * 10^9 N. m^2/C^2

    F = 9.00 * 10^9 N. m^2/C^2 * 2.4*10^-8 C * 1.8*10^-6 C / [0.008m]^2 = 38.88 * 10^ - 5 N

    F = 39 * 10 - 5N
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