22. A ball is thrown straight up to a height of 20 meters and it falls straight down and is caught at the starting point.
A. What is the distance of the ball?
B. What is the displacement of the ball?

Explain how plate tectonics have changed earth’s surface over time. include the role of plate tectonics in the creation of landforms.

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?