Answer:
1- C 2-B 3-B - these are ur best answers
Explanation:
using the law of refraction, the incidence is equal to the reflection, but not refraction
Answer:
As the roller coaster goes higher, more potential energy is increased in the roller coaster. Caused by gravity and the roller coaster's position, the potential energy is stored in the roller coaster. For example, this ball is at the top of a hill, where potential energy is at it's highest. Potential energy can be calculated by Potential Energy=Mass X Acceleration X Height.
Explanation: