The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 69 cm apart in the same axle. From the angular displacement 25.5° of the two bullet holes in the disks, we can determine the speed of the bullet.

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Distinguish between linear momentum and angular momentum