Answer:
The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent. The closer to 100 percent a machine's efficiency is, the better it is at reducing friction
Explanation:
Igneous rock makes up the majority of the mares. Because of volcanic eruption.
Answer:
1. at the top of the coaster.
2. at the bottom of the coaster.
3. when the car is moving
4. when the car is moving
Explanation:
there is the most amount if potential energy at the top, and the keast at the bottom.
A resource, such as oil, that cannot regenerate in a reasonable amount of time, such as a human lifetime, is called a "nonrenewable" resource.<em> (A) </em>
Once it's gone, it's gone.
