Ye a little help here I'm supposed to turn this in soon ~
question.
What do you notice about the movement of the molecules of the two samples​

Idk i think the answer choice is number 1

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

Go into your kitchen and get some water or coolaid and warm up at hot dog