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Part E: Modern Physics (21 marks) (approximate time: 22 minMNCS) 12. In 2010, a 20-year-old astronaut leaves her twin on earth and goes on a

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Part E: Modern Physics (21 marks) (approximate time: 22 minMNCS) 12. In 2010, a 20-year-old astronaut leaves her twin on earth and goes on a rocket to explore the galaxy. The rocket moves at 2.9x 108 m/'s during the voyage. It returns to earth in the year 2040. a. Using relativity, calculate the age of the returning astronaut

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