Physics, 25.02.2021 07:40 lauren21bunch
PLEASE HELP WITH THE FOLLOWING 3 QUESTIONS (Show steps thank you:)).
1. when you are 20 years old, you watch Superman (age 40.0) leave Earth on an important mission. He is capable of flying at 2.70 x 10^8 m/s. He finally arrives back at Earth when you are 62.0 years old. How old is Superman?
2. Rick is filming a movie in space and he is travelling so fast that he appears to you on earth to have 9.00 times his normal mass. How fast is he travelling?
3. A human's average life span is 80.0 years. How long in earth years would the average human live if they were travelling around the universe at 0.856c?
Answers: 2
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PLEASE HELP WITH THE FOLLOWING 3 QUESTIONS (Show steps thank you:)).
1. when you are 20 years old,...
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