Work is defined by the product of force and displacement when torque is defined by the product of force and distance. Are work and torque equivalent

Domain eukarya; kingdom plantae should be the answer.

Pe = 1/2k(x)^2  and .05n/m = .05x10^-9m = x 

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.

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