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Speedy travels to Planet X, several light years from the Earth. His ship travels at 0.95c....

Speedy travels to Planet X, several light years from the Earth. His ship travels at 0.95c. After reaching Planet X, he immediately returns to the Earth at the same speed. When Speedy returns, he has aged 13 years. Meanwhile, Goslo has aged ____ yrs.

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if thetimeperiod elapsed in spaceshipmeasurebyspeedy for the whole joumey t, 13years and thespace ship of speedy ismoving wit

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