A cart has a velocity of 3x - 4y m/s. Its mass is 20 kg. What is its momentum?

Is 18g thank me later

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.

That big glowy thing in the sky is called the sun