.A millimeter cube of carbon the size of a pencil point contains about 77 coulombs of positive and negative charge. If you could separate all of the positive and negative charges by a distance of one meter the attractive force between them would be about

Explanation:

The magnitude of the electricforce between two charges is given by the formula:

where:

is the Coulomb's constant

are the two charges

r is the separation between the two charges

And the force is:

- Repulsive if the two charges have same sign

- Attractive if the two charges have opposite sign

In this problem, we have:

is the magnitude of the positive charge

is the magnitude of the negative charge

r = 1 m is the distance between the two charges

So, the magnitude of the electrostatic force is

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нσρє ι ¢συℓ∂ нєℓρ.