Answer:
/ 
= 
= 5
Explanation:
Find the given attachment
Answer:
A force is a push or pull that acts upon an object as a result of that objects interactions
Explanation:
The 78g box, since it has less weight, would accelerate faster. If you had a frictionless surface, and you conducted this experiment, both boxes, without any outside forces, would accelerate at the same rate forever. However, in this problem we must assume the surface is not frictionless. Friction is determined by weight; the more weight, the more friction. Since the 78g box has less weight, it has less friction, making it easier to push with less force.
The sound gets louder, like hitting a metal pole on a thin metal beam, the energy increases as the sound does.
