A person on a trampoline bounces straight upward with an initial speed of 4. 5 m/s. What is the person’s speed when she returns to her initial height?.

Could we see a galaxy that is 20 billion light-years away?

Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay

Is a volume of space that is empty of matter.