Find the density of the earth if its mass is 6×10^3kg and radius is 6.4×10^3km

Answer 1

density = mass/volume, so

(6×10^3 kg) / (4π/3 * (6.4×10^3 km)^3)

If you do the division, you will see an unexpectedly small result

You sure the mass of the earth is only 6 metric tons?