Vrte une unswer to each question on a separate sheet of paper.
1. use billiard balls to describe the motion of particles in a gas. use
students in a crowded hallway to describe the motion of particles
in a liquid. use an audience in a movie theater to describe the
motion of particles in a solid.

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

this is a good question! i'll do some research and come back when i have the answer!

f=ma newton's second law 7x8=56n