as a person pushes a box across a floor, the energy from the persons moving arm is transferred to the box…
as a person pushes a box across a floor, the energy from the persons moving arm is transferred to the box, and the box and the floor become warm. during this process, what happens to energy?\no it is increased.\no it is conserved.\no it is decreased.\no it is created.
Answer
Explanation:
Step1: Recall energy - conservation law
According to the law of conservation of energy, energy cannot be created or destroyed in an isolated system. In the process of pushing a box across the floor, the mechanical energy from the person's moving arm is transferred to the box in the form of kinetic energy. Some of this energy is also converted into thermal energy due to the friction between the box and the floor, making them warm. But the total amount of energy in the system (person - box - floor) remains the same.
Answer:
It is conserved.