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frame ?ou-2267097&isprve;&drc;=0&qst; 140701 &cfqS-08; S//kudzi k utztown.edu/d2V1ms/quizzng/user start azi bookmarks here on the bookmarks bar. Import bookmarks now LAXIES, &BLACK; HOLES ations, Assessments Resources, D2L Help Holes & Galaxies Time Left:0:59:20 Michael Jacobs: Attempt 1 Question 16 (5 points) By measuring the Hubble constant to be 70 km/s/Mpc, we calculated that the age of the universe is approximately 14 billion years. If the universe were only 7 billion years old, the Hubble constant would be A) measured to be about 140 km/s/Mpc B) changing rapidly C) .. measured to be about 35 km/s/Mpc 8 7 8 9 6 3 4 0

Explanation / Answer

Option A) is correct.

The Hubble time is t = 1/H0

This illustrates that the larger the value of Ho, the smaller the value of the Hubble time. Recall that the Hubble time is an over estimate for the age of the Universe.

So

t1/t2 = Ho2/Ho1

Ho2 = (t1/t2)*Ho1 = 2*70 = 140 km/s/Mpc

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