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Problem 2 a) Show that a(t) = ct is a solution of the Friedmann equations for a completely empty universe (p = p= 0) if k = -1. %3D b) Find expressions for the proper distance dp and the angular diameter distance da as functions redshift z for this model.

Problem 2 a) Show that a(t) = ct is a solution of the Friedmann equations for a completely empty universe (p = p= 0) if k = -1. %3D b) Find expressions for the proper distance dp and the angular diameter distance da as functions redshift z for this model.

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Problem 2 a) Show that a(t) = ct is a solution of the Friedmann equations for a completely empty universe (p = p= 0) if k = -1. b) Find expressions for the proper distance d, and the angular diameter distance da as functions redshift z for this model.
Transcribed Image Text:Problem 2 a) Show that a(t) = ct is a solution of the Friedmann equations for a completely empty universe (p = p= 0) if k = -1. b) Find expressions for the proper distance d, and the angular diameter distance da as functions redshift z for this model.
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