8. you and your little brother are arguing over a sweater. if you pull
with 65 n of force and your brother pulls with 30 n of force, who
would move in what direction and with how much force?

The sweater will move towards you with a force of 35 N

Explanation:

In this problem, we have two forces acting on the sweater:

- A force of 65 N towards you

- A force of 30 N acting towards your brother

We can choose the direction "towards you" as positive, so that we can write the two forces as follows

Therefore, the net force acting on the sweater will be

And the positive sign (+) indicates that the  direction of the net force is towards you, so the sweater will move towards your direction.

heats surface water up