just divide mass by volume:
5.975*10^24kg / (4π/3 (6.37*10^6)^3 m^3) = 5518 kg/m^3 = 5.5 g/cm^3
The radius of the earth is 6.37*10^6 m and its mass is 5.975*10^24 kg. Find the earth's average density to appropriate significant figure.
1 answer