Which phrase helps you understand the meaning of vertical in paragraph 3? Explain why. I chose From the height of the peak can you please give me an example why

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Which accurately compares concave and convex lenses?