How long does a 713W, 2500N force act in order to move an object 12.0m?

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.

Not sure but i think it's b.

I’m not sure about this question

Your answer would be b. the total kinetic and potential energies of its particles