Choose the correct statement. A. Turning the steering wheel rotates the pinion and moves the rack up and down
B. The teeth on both the pinion and the rack are helical gears
C. A large pinion means the number of turns of the steering wheel is increased
D. The steering ratio is the same on all vehicles

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?