How can we run out of energy if energy cannot be created or destroyed?

2 questions: Are seismic waves mechanical or electromagnetic waves, and are seismic waves transverse or compressional waves?

A soccer ball collides with another soccer ball at rest. the total momentum of the balls a) is zero b) increased c) remains constant d) decreases

In 1780, in what is now referred to as "Brady's Leap," Captain Sam Brady of the U. S. Continental Army escaped certain death from his enemies by running over the edge of the cliff above Ohio's Cuyahoga River in (Figure 1), which is confined at that

When one tectonic plate moves underneath another, what is occurring? A. subduction B. collision C. uplift D. slip

What is responsible for forming chemical bonds with other atoms?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww

According to the article, data from scientific observations fulfill what three functions

What are the three ways that an object can accelerate