boomer420
contestada

A set of waves with a line through their middle. Another line runs from the middle line to the crest of 1 wave and is labeled with an arrow ending in a question mark. What is the name of the part of the wave that is labeled with the question mark?

A set of waves with a line through their middle Another line runs from the middle line to the crest of 1 wave and is labeled with an arrow ending in a question class=