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Secondary - Physical Science

Beniell travels at high speed from Earth to the star Alpha Centauri which is four years away. Which one is CORRECT in Beniell's frame?

The clocks on earth and on Alpha Centauri are synchronized.
The trip takes more time than it does in the earth's frame.
Beniell travels to Alpha Centauri over a length that is shorter than four light years.
Alpha Centauri travels to Beniell over a length that is shorter than four light years.

Answer: Alpha Centauri travels to Beniell over a length that is shorter than four light years.

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LET Reviewers

Secondary - Physical Science