In an attempt to save time. A fosses a paintbrush up to B. Icom the ground. The paintbrush has an upward initial velocity of 11 m/s. Unfortunately, B is unable to catch and the paintbrush falls back to the
ground
How much time does it take for the paint brush to reach its maximum height?

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 body lying face up ;

Answerigneous bedrock of the oceanic crust;