Question

The average density of earth is taken to be 5.46 gcm-3.The diameter of Earth is 12.8 X10 to the power of 6. Calculate the mass of the Earth

Answer 1

density=mass/volume
volume(of sphere)=4/3*pi*r^3
mass=?

Answer 2

volume*density should give u the answer

Answer 3

first divide the diameter by two to get the radius then calculate the volume by 4/3\[\pi\](radius)*3

Answer 4

Use the density formula and proceed.