Who has a gf i need help finding one

Light waves can move through , but they travel fastest when they move through a(n) .

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.

In a ball-and-stick molecular model, what do the sticks represent?