Answer:
It expands
Step-by-step explanation:
The energy put into it causes it to move faster and expand
Answer:
-1/2
Step-by-step explanation:
The slope is the change in y over the change in x.

For this question:

ROC is often used when speaking about momentum, and it can generally be expressed as a ratio between a change in one variable relative to a corresponding change in another; graphically, the rate of change is represented by the slope of a line. The ROC is often illustrated by the Greek letter delta.
Hope this helps!
Better hearing and better sound censory
i think anyways