Please show all steps to attached problem Thank you What was

Please show all steps to attached problem. Thank you.

What was the density of baryons, dark matter, and radiation at the time of big bang nucleosynthesis when the Temperature was T 10^10K?

Solution

(a) 9.47 * 10^-27 kg/m³

(b) 6 * 10^-28 kg/cm³

(c) 0.4 Mev/ m³