Billy gets onto a big wheel and goes around once (a total of 30m) in one minute.
When he gets off, he tells Tara that his
displacement was zero. Tara reminds him
that he travelled all the way around the
wheel (30m).
Explain how both Billy and Tara are correct.

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

How to tell if a molecule is polar or nonpolar with electronegativity

If element x has 99 protons how many electrons does it have