An object possesing an excess of 6.0x10^6 electrons has what net charge?

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

What is the measure of a change in an objects velocity?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion