a sound wave is an example of a mechanical wave. sound waves are incapable of traveling through a vacuum. slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist
hi emilygarcia7775, you know that's an easy question i can even answer that easily because it already have a formula in the book. since you questioned it i will answer that, but how can i answer it without the number of dots you've done from your, activity 2 right?
in case you don't know how:
you can set your tumblr private by going to "settings" below "customize appearance" from your dashboard. scroll down to the bottom and tick the box where it says "password protect this blog"