A force of 500 Newtons is used to pull a box. The box weighs 600 Newtons and the coefficient of the ground is 0.5. How much force is needed to pull the box at a constant velocity? Is there any force left to accelerate the
box? If so, how much?

Letter a, because when there are unlike charges they will always attract to each other.

I'll do it rn and then answer

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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