Andre the giant and thumbelina are standing in the middle of an ice-skating rink facing each other. andre the giant pushes thumbelina and she goes sliding, but andre also slides a bit backwards. why did this happen?

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.