makes a round trip at 0.6c to a star 12 light-years away, while twin B stays on the earth. Each twin sends the other a signal once a year by his own reckoning. How many signals d

Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter1: Relativity I
Section: Chapter Questions
Problem 28P
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Twin A makes a round trip at 0.6c to a star 12 light-years away, while twin B stays on the earth. Each twin sends the other a signal once a year by his own reckoning. How many signals does A send during the trip?                                                                                                                                                                                                                                                                                                     

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At one point in time ,two twins are 30years old . At dis time .one of them gets on a rocket and travels at 0.8c, for what he experience to be 24 years. How old is the twin that remained on earth  when the travelling twin  return

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