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(Solved): 1. State the definition of the critical density p. If the density parameter for dark matter is 92cdm ...



1. State the definition of the critical density p. If the density parameter for dark matter is 92cdm.0 -0.25 today, determine the density pedmo today (in units of kg m²³) assuming H? = 73 km s¯'Mpe¯' for the present-day Hubble parameter. [5]

1. State the definition of the critical density \( \rho_{\mathrm{c}} \). If the density parameter for dark matter is \( \Omeg
1. State the definition of the critical density . If the density parameter for dark matter is today, determine the density today (in units of ) assuming for the present-day Hubble parameter. [5]


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Critical density is defined as the density of matter, that is required to stop the universe's expansion.




we have known total density parameter
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