is the rate that an object moves in a certain direction.

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical

Which class of lever is a baseball bat? what are the parts of a baseball bat's lever class? describe each one.enter your answer in the space provided.(this question you write your own answer.)i couldn't find the right category, so sorry if this doesn't match.