Kevin has a mass of 87- kg and is skating with in-line skates. he sees his 22-kg younger brother up ahead standing on the sidewalk, with his back tuned. coming up, grabs his just before he brother and rolls off at a speed of 2.4 m/s. ignoring friction, find kevin speed just before he grabbed his brother.

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.

Answer form flower;