Two balloons are charged with an identical quantity and type of charge: -4 nc. they are held apart at a separation distance of 70 cm. determine the magnitude of the electrical force of repulsion between them.

Explanation:

The electrostatic force between the two balloons is given by:

where

is the Coulomb's constant

is the charge on each balloon

is the distance between the balloons

Substituting into the formula, we find

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