Sound is a longitudinal wave.
Explanation:
the velocity graph of a ball mass 20mg moving along a straight line
Gases can be compressed, because they just take up the space surrounding them. The attractive forces between the particles in a gas are very weak, so the particles are free to move in random direction. They just move along until they collide, either with the walls of the container or with each other. Moreover, gases can be compressed because the particles are far apart and they have space to move into.
Answer:Force is to the right
Explanation: because the right side has 75N compared to the 25N on the left.