How much power is necessary to do 50 j of work in 5 seconds

Power = Work / Time

If W = 50 J and T = 5s

P = W/T = 50J/5s = 10 Watts

Power = work / time
Power = 50J / 5s
Power = 10 Watts (w)

You can find results and justify them? you can test your hypothesis

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.