1) The heat added to system
2) 800J
3) I'm not sure but I think it would be 300J.. Not certain tho
Answer:
That the polar air has has more pressure than the air at the equator.
Explanation:
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.