2. You are a geologist assigned to estimate the density of the Earth. You know that density is given by: p=m/V. you need to first find the volume (V) of the Earth, which can be found by the equation: g=G x m/r2. You are given the following values: G=6.67 x 10-11 Nm2kg-2, m=5.97 x 1024kg and g= 9.81 ms-2. Calculate the radius of the Earth and then the volume of the Earth. Assume that the Earth is perfect spherical shape and find its surface area.
