A large crate is pushed across the floor with an effort of 45 Newtons. The box is pushed a distance of 3.5 meters. How much work is done?

Explanation:

Work is equal to the product of force and distance.

The box is being pushed with an effort (force) of 45 Newtons and the distance is 3.5 meters.

Substitute the values into the formula.

Multiply.

1 Newton meter is equal to 1 Joule Our answer of 157.5 N*m equals 157.5 J

157.5 Joules of work are done on the crate.

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.