Suppose an astronaut travels to a star 10 lightyears away at a significant fraction of the speed of light (for example, v=0.99c) and returns. Assume negligible amount of time is spent at the destination.Does this round-trip journey take less than, equal to, or more than 20 years as observed by an Earth-based observer?Does this round-trip journey take less than, equal to, or more than 20 years as observed by the astronaut?

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Answered: Suppose an astronaut travels to a star…

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 10P: The average lifetime of a pi meson in its own frame of reference is 2.6 × 10−8 s. If the meson moves...

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Suppose an astronaut travels to a star 10 lightyears away at a significant fraction of the speed of light (for example, v=0.99c) and returns. Assume negligible amount of time is spent at the destination.
1. Does this round-trip journey take less than, equal to, or more than 20 years as observed by an Earth-based observer?
2. Does this round-trip journey take less than, equal to, or more than 20 years as observed by the astronaut?

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