A) Expanding. We know this because it has a similar effect with sound. When a car goes by the pitch gets deeper and deeper. It's because you're receiving less waves. Same thing for light but instead of a pitch it's light, and the farther spread the waves - the redder, the closer and more contracted - the bluer
its c so componets arr r\very fragle im aying this because it needs more then 20 letters
It must have a medium. It must travel in empty space. Mechanical waves are waves which needs medium of propogation.
Kinetic energy because the horse is in motion
Answer: The skier has potential and kinetic energy.
Explanation: This is what I found from a different user on this website
