Answer:
By conservation of energy, it can climb up to a height equal to that it went down before. However, due to the friction in the machines, the total mechanical energy of the roller coaster will decrease. As a result, the first "hill" of many roller coasters are the highest, but the followings will have decreasing heights.
Explanation:
The angle of refraction would be further less
Answer:
η = 58.8%
Explanation:
Work is defined as the force applied by the distance traveled by the body.
![W =F*d](https://tex.z-dn.net/?f=W%20%3DF%2Ad)
where:
W = work [J] (units of joules)
F = force = 294 [N]
d = distance = 5 [m]
![W = 294*5\\W = 1470 [J]\\](https://tex.z-dn.net/?f=W%20%3D%20294%2A5%5C%5CW%20%3D%201470%20%5BJ%5D%5C%5C)
Efficiency is defined as the energy required to perform an activity in relation to the energy actually added to perform some activity. This can be better understood by means of the following equation.
![efficiency = W_{done}/W_{required}\\efficiency = 1470/2500\\efficiency = 0.588 = 58.8%](https://tex.z-dn.net/?f=efficiency%20%3D%20W_%7Bdone%7D%2FW_%7Brequired%7D%5C%5Cefficiency%20%3D%201470%2F2500%5C%5Cefficiency%20%3D%200.588%20%3D%2058.8%25)
Answer: I believe the answer is C. Higher Volume.
Explanation: I apologize if I am incorrect.