Which statement describes the motion of a mass on a spring? a. it exhibits constant velocity motion. b. it exhibits simple harmonic motion. c. it exhibits circular motion. d. it exhibits only upward motion.

The statement that describes the motion of a mass on a spring would be: It exhibits constant velocity motion. The motion in mass of the spring will follow the basic Hooke's law which stated that the stress/force of an elastic object like spring will be proportional to the stress applied to it.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.