your answer is <u>D</u><u>.</u><u> </u>physical change, because a new substance is not formed.
Answer: COMBINED FORCES
When forces act in the same direction, they combine to make a bigger force. When they act in opposite directions, they can cancel one another out. If the forces acting on an object balance, the object does not move, but may change shape.
Explanation:
Answer:
A. an equal and opposite reaction force
Explanation:
This means that there is a natural reaction of force
