When a rubber band is pulled back on your finger but not yet let go how is that potential energy?

Is the alien theory a scientific claim? why or why not? just took the test it was , : " the alien theory is not a scientific claim because it is not based on valid data, there is no evidence to support it, and it does not come from a reliable source."

In what direction does the medium move relative to the direction of the wave? explain.

What is the length x of the side of the triangle below? (hint: use the cosine function)