Shortly after the discovery of the expansion of space, physicists made many attempts to measure Hubbles constant These measurements are difficult, and values of H 0 ranging from 12 to 28 (km s) Mly were found (a) Find the age of the universe for this minimum and maximum value of H 0 (b) The best cu...

Suppose the universe is expanding at a constant rate We do not know if this is actually the case but ...

Shortly after the discovery of the expansion of space, physicists made many attempts to measure Hubbles constant.

Question:

Shortly after the discovery of the expansion of space, physicists made many attempts to measure Hubble’s constant. These measurements are difficult, and values of H₀ ranging from 12 to 28 (km/s)/Mly were found. (a) Find the age of the universe for this minimum and maximum value of H₀. (b) The best current value of H₀ comes from the WMAP probe of the cosmic background radiation, giving a value of 21 (km/s)/(Mly) with an uncertainty of about 4%. What age of the universe does this measured value suggest?

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