Two identical charges q placed 2.0 mapart exert forces of magnitude 4.0 n on each other what is the value of the charge q? a) q 1.8 x 10- c b) q 2.1 x 10-5 c c) q 4.2 x

c)

Explanation:

Coulomb's law says that the force exerted between two charges is inversely proportional to the square of distance between them, and is given by the expression:

where k is a proportionality constant with the value

In this case , so we have:

Solving the equation for q, we have:

Replacing the given values:

the answer would be 32*f

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explanation: