Alex and Alexa are twins. At their first birthday party, Alex isplaced on a spaceship that travels
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Alex and Alexa are twins. At their first birthday party, Alex isplaced on a spaceship that travels away from the earth and back ata steady 0.85c. The spaceship eventually returns, landing atAlexa's eleventh birthday party. When Alex emerges from theship, it is discovered that:
A. He is still a year old
B. He is 6 years old
C. He is also 11 years old
D. He is 21 years old
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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