Katie Ledecky is her name.
When light passes through concave lenses <span>the refracted rays diverge so that they appear to come from one point called the principal focus.
</span>Light<span> that </span>passes through<span> a </span>convex lens<span> can be focused on a surface like a screen.</span>
I believe it’s A, i could be wrong tho 3
Try grabbing a thin square material that would float normally. Try poking holes in it like shown in the examples. You will find your answer there! (Paper might work as long as the paper can handle water.)
Answer:
Solids: Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.
Explanation: