12 In 2020 a 20 year old astronaut leaves her twin on Earth

Last updated: 6/15/2023

12 In 2020 a 20 year old astronaut leaves her twin on Earth and goes on a rocket to explore the galaxy The rocket moves at 2 7 x 10 m s during the voyage It returns to Earth in the year of 2050 a Using relativity calculate the age of the returning astronaut T I 2 b Find the length of the rocket in Earth s frame of reference when it is moving given that the rest length is 120 m assume you are a stationary observer viewing the rocket from the side A 3 c Find the relativistic mass of the rocket when it is moving given that the rest mass is 150 000 kg A 3 4