The graph represents velocity over time... What is the acceleration?
-0.4 m/s²
-0.2 m/s²
0.2 m/s²
0.4 m/s²

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity

Select the correct answer. what does the process of natural selection involve?

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.