Figure is a hypothetical plot of the recessional speeds y of galaxies against their distance r from

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Figure is a hypothetical plot of the recessional speeds y of galaxies against their distance r from us; the best-fit straight line through the data points is shown. From this plot determine the age of the universe, assuming that Hubble's law holds and that Hubble's constant has had the same value throughout the expansion of the universe.

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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