If test pilot ace dimmer were sitting in his jet on the runway, his weight (supporting force) would be 600 n. when he is flying an upside down loop of radius 1000 m (1 km) at a speed of 200 m/s, with what force does his seat press on him? (remember, he is upside down.) the acceleration due to gravity is g = 10 m/s2 .

Sublimation- which change of state is shown in model

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.

Ibelieve the answer is arteries