How much energy does it take to move a particle with a charge of +2 nc, from an initial position infinitely far from a second particle with a charge of +3 mc, to a final position 0.20 m from the second particle?

To solve this problem we will apply the concept related to the electric potential energy, defined from the laws of Coulomb for which it is necessary to,

Here,

k = Coulomb's constant

= Charge of each object

r = Distance,

Our values are given as,

Finally replacing we have that,

Therefore the energy necessary to move the particle is 0.27J

not too sure thinking all accelerations are pointed down