An engineer is experimenting with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. For the experiment, the engineer will move one car one space. Which movement will result in the largest increase in potential energy?

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

During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.