Answer:
umm section 2 and 4
Explanation:
because at section 2 it starts and at section 4 it moves again and stops at 3.
The reason meow is because meow meow meow meow meow meow of 4 meow.
Answer:
7557.875 J
Explanation:
Assumimg we need to find work done by the bullet on the gas
The work is found by integrating force over distance
W= 
For the force in this problem we have

= ![[14000x+10000x^2-21000x^3]_{0}^{0.65}](https://tex.z-dn.net/?f=%5B14000x%2B10000x%5E2-21000x%5E3%5D_%7B0%7D%5E%7B0.65%7D)
=7557.875 J