In the diagrams shown below, the length of the arrow indicates the relative amount of force. Which of these diagrams correctly shows the amount and direction of the forces on the wall and the car during the collision? A

B

C

D

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.