A roller coaster needs more kinetic energy to reach the top of a tall Hill what are two ways that the engineer can increase the amount of kinetic energy the roller coaster has

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings