You (60 kg) are standing in an elevator traveling upward that passes the 3rd floor at 2.9 m/s and then passes the 4th floor at 3.9 m/s one second later. Find the normal force exerted on your feet by the elevator while it is passing between these floors.

Ais the answer hope this

Ithink it is c ,i hope i you

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.