An 85.0 kg man, sitting in a 110 kg canoe, catches a 5.0 kg cooler, tossed at 5.0 m/s by a friend. a. Is the collision elastic or inelastic? Explain.

b. What is the final velocity of the canoe?

Independent variable is something that is changed in a experiment. 

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.

When is this

To a fellow spongebob-ian i will be glad to , the cheetah didn't get far on purpose because he's a cheetah  ( ͡° ͜ʖ ͡°)