A car has an acceleration of +2m/s² what does this tells you about the car's velocity? what is meant by an acceleration of -2m/s²?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)

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.