Help on question 8 and 9 please and thank you

Question Answered step-by-step Help on question 8 and 9 please and thank you Help on question 8 and 9 please and thank you Image transcription text8. A light-year is the distance that light travels in one year. The closest star to our solar system, Alpha Centauri,is approximately 4.0 light-years away. Travelling at a speed of 0.93c, how many years would an astronaut take(as measured on her spacecraft) to reach this star? 8) 4 marks 9. How much energy is contained i… Show more… Show more Science Physics PHYS 101 Share QuestionEmailCopy link Comments (0)