One bowling ball roll into an other bowling ball that is not moving the bowling ball bounces aft each other what must be true about this collision

Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?

Give an example in which the electrical energy changes to light energy

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?