Near the beginning of the universe, A. the temperature was billions of degrees. B. the density was enormously high. C. the matter could turn into energy and vice versa

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

What is the gravitational attraction between a dating couple whose centers of mass are 0.630 m apart if the boy weighs 715 n and the girl weighs 465 n?