What happens to the average kinetic energy of a substance as its temperature increases? A. It decreases, then increases.

B. It remains the same.

C. It increases.

D. It decreases.

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?