One particle has the charge of 2* 10-5 C, and the other has a charge of 5 * 10-6 C. The distance between the particles is 0.03 meters. The Force in Newtons
is equal to
1000
0.9
0.0009
0 0.03

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explanation:

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.