Calculate the electrostatic force between a +133 µC charge and a -283 µC charge

Question

Calculate the electrostatic force between a +133 µC charge and a -283 µC charge that are 24 cm apart.
__N

Is the force between the charges attractive or repulsive? Why? Choose one of the answers below.

The force is attractive because they have opposite signs.
The force is attractive because they have the same sign.
The force is repulsive because charges are always repelled from each other.
The force is repulsive because they have the same sign.
The force is repulsive because they have opposite signs.
The force is attractive because charges are always attracted to each other.

Explanation / Answer

from the data

q1 = +133c

q2= -283c

r = 24cm = 0.24m

from the columb inverse sqare law

   F = kq1q2/r^2

where we take mode q2

then

F = 5.8 * 10^3N

attraactive force becausse

The force is attractive because they have opposite signs.

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