Answer:
That would be option D. A motor.
Explanation:
Can you give anymore information?
Scientists often perform experiments to check and recheck their work. They also redo these experiments to ensure correct results.
Answer:
Work can be defined as transfer of energy. In physics we say that work is done on an object when you transfer energy to that object. If one object transfers (gives) energy to a second object, then the first object does work on the second object.
Explanation:
