Question

The Virgo Cluster is observed to have a recession velocity of 1200 km/s.

(a) Assuming that H0 =70km/s/Mpc and assuming a critical-density universe, calculate the total mass contained within a sphere centered on Virgo and just enclosing the Milky Way Galaxy.

Express your answer using two significant figures in kg

(b) Assuming that H0 =70km/s/Mpc and assuming a critical-density universe, calculate the total mass contained within a sphere centered on Virgo and just enclosing the Milky Way Galaxy.

Express your answer using two significant figures in km/s

Answer 1

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