select the correct answer. based on the law of conservation of energy, how can we reasonably improve a…

select the correct answer. based on the law of conservation of energy, how can we reasonably improve a machines ability to do work? a. move the machine to a different gravitational field. b. increase the friction between its moving parts. c. reduce the friction between its moving parts. d. redefine the machines system boundaries.

select the correct answer. based on the law of conservation of energy, how can we reasonably improve a machines ability to do work? a. move the machine to a different gravitational field. b. increase the friction between its moving parts. c. reduce the friction between its moving parts. d. redefine the machines system boundaries.

Answer

Brief Explanations:

Friction causes energy - loss as heat. Reducing it means more input energy can be used for useful work according to energy - conservation. Moving to a different gravitational field doesn't directly improve work - doing ability related to internal energy use. Increasing friction wastes energy. Redefining system boundaries doesn't improve work output from internal energy.

Answer:

C. Reduce the friction between its moving parts