5.1 A light source in a flat, single-component universe has a redshift z whenobserved at a time to. Show that the observed redshift z changes at a ratedz= Ho(1 +z) - Ho(1+ z)3(1+w)/2.dto(5.116)For what values of w does the observed redshift increase with time?5.2 Suppose you are in a flat, matter-only universe that has a Hubbleconstant Ho = 68 km s-1 Mpc1. You observe a galaxy with z = 1. Howlong will you have to keep observing the galaxy to see its redshiftchange by one part in 106? [Hint: use the result from the previousproblem.]

Given: Hubble Constant, H0=68 kms-1Mpc-1Redshift, z=1Change in redshift, ∆z=106 Hubble's law, also…

Answered: 5.2 Suppose you are in a flat,…

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5.2 Suppose you are in a flat, matter-only universe that has a Hubble constant Ho = 68 km s-1 Mpc-1. You observe a galaxy with z = 1. How long will you have to keep observing the galaxy to see its redshift change by one part in 106? [Hint: use the result from the previous problem.]