Which of the following compounds is not composed of three atoms?

a calcium oxide

b dinitrogen oxide

c iron disulfide

d silicone dioxide

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

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.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?