6. A certain ball was measured to have a momentum of 38 kg•m/s when traveling at 8m/s, how much mass does this ball contain?
А.
304 kg
B
5 lb
304 Ib
D
4.75 kg

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.