Answer:
1000 and 1000
Explanation:
Energy cannot be created nor destroyed. It can only be changed from one form to another. When an energy transformation takes place in a closed system, the total amount of energy before the transformation is always equal to the total amount of energy after.
Since 1,000 kilojoules of light energy struck the solar cell in a closed system and no heat was generated, all of this energy was transformed into electric energy, then all of that energy was transformed into kinetic energy. So there were 1,000 kilojoules of electric energy and 1,000 kilojoules of kinetic energy.
In the real world, much of this energy would also be transformed into heat energy.