Awheelbarrow is experiencing two forces. one is pushing 5 n to the east and the other 5 n in the exact opposite direction. what must be true of the wheelbarrow's motion?

It will stay in the position it is; the net force applied on that object would equal 0.

This is what a calorimeter is used for simpler ex, to measure calories in food.

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.