Answer:
You should use this for work related questions :/
Energy can be one answer! There are many, but energy is a main one.
Its A: the use of hydropower often changes the natural flow of water through an ecosystem
add me on robloxs <span />
Answer:
B. 24.2 m/s
Explanation:
Given;
mass of the roller coaster, m = 450 kg
height of the roller coaster, h = 30 m
The maximum potential energy of the roller coaster due to its height is given by;
Therefore, the maximum speed of the roller coaster is 24.2 m/s.
<span>A. frustration-aggression theory.
Good Luck!!</span>