In an amusement park, the temperature of a track rises as a roller coaster moves downhill on it. Which statement best describes energy changes leading to this rise in temperature? A. Friction between the roller coaster’s wheels and the track causes kinetic energy to be transformed to thermal energy. B. The kinetic energy of the roller coaster is transformed to potential energy, which causes the temperature of the track to change. C. Friction between the roller coaster’s wheels and the track causes thermal energy to be transformed to kinetic energy. D. The thermal energy of the roller coaster is transformed to potential energy, which causes the temperature of the track to change.

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis