The Earth has a mass of and an average radius of .What is the average density of the Earth?

Question

The Earth has a mass of  and an average radius of  .What is the average density of the Earth?

Quizplus · Accepted Answer

The formula for the average density of a planet is mass/volume. The volume of a sphere is (4/3) * pi * radius^3. Plugging in the given values, we get:

Volume = (4/3) * pi * (11eb80b6_50b7_fc38_8bbb_5fd03550d3fb_TB8750_11)^3
Mass = 11eb80b6_50b7_fc37_8bbb_5713f2bfb0a5_TB8750_11

Density = Mass/Volume
Density = 11eb80b6_50b7_fc37_8bbb_5713f2bfb0a5_TB8750_11 / ((4/3) * pi * (11eb80b6_50b7_fc38_8bbb_5fd03550d3fb_TB8750_11)^3)

Simplifying this expression gives us:

Density = 5.52 g/cm^3

Therefore, the best choice is B, with the density expressed in scientific notation.

The Earth Has a Mass of and an Average