Answer: A at he bottom of the first hill your kinetic energy of a roller coaster is at its highest.
Explanation: as the roller coaster goes down it has more energy to go because it the first hill, and as it keeps going it losses kinetic enrgy thats why it slows down.
By replacing them with his young artist friends and their models
Take a sketch of what is happening. Then when you get back to where you work take that rough draft and crate it as best as you can make sure to use color so you get the color right
Answer: keep an open mind
Explanation:
