A 12 cm-diameter CD has a mass of 21g. What is the CD's moment of inertia for rotation about a perpendicular axis a. through its center and
b. through the edge of the disk?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.