Calculate the mass of earth earth assum
assuming
that it i a
6.67x106m.
Sphere with radius​

Explanation:

The radius of Earth is

The density of an object is given by :

The density of Erth is, d = 5515 kg/m³

Where

m is the mass of the Earth

So,

Put all the values,

So, the mass of the Earth is equal to .

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west