Change in v = 9.8 m/s 2x t. The diagram shows a ball falling toward Earth in a vacuum
Time (s) o
V=0 m/s
2
What is the velocity of the ball at 3 seconds?
A. 29.4 m/s
B. 19.6 m/s
C. 39.2 m/s
OD. 9.8 m/s

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together