Two freight cars, each with a mass of 2.3 x 105 kg, collide. One was initially moving at 3.4 m/s; the other was at rest. They stick together. What is their final speed? (WILL GIVE BRAINLIEST)​

34535543; (; ; $

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.