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Physics, 05.07.2019 00:20 ranamontana98

Hubble's law states that galaxies are receding from us with a speed v directly proportional to its distance d: v = hd, where h is the hubble constant. critical density p. of the universe is the average 3h2 where g is the gravitational 8/tg density of matter required just to halt its expansion. show that pc = constant

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