Sizes of earth in various states?

Question

What would the size of the earth be ( in cubic centimeters) if:

1. It was "squeezed" into a density of a white dwarf?

2. It was "squeezed" into a density of a neutron star?

3. It was "squeezed" into a density of a black hole?

Answer 1

The mass of the Earth is 6 x 10^24 kg
The formula for density is"
d = m/V
where
d = density (kgm^-3)
m = mass (kg)
V = volume (m^3)

Now you can solve you problem by finding out the densities of white dwarf, neutron star and black hole. I suggest you google density white dwarf etc if you haven't already. (Answers will vary)

Answer 2

If you squeeze Earth to just under 2 cm across, it will become a black hole. At that point, it will continue collapsing under its own gravity forever, down to an infinitely small point.

I'd have to look up the densities of a white dwarf and a neutron star to calculate the other two, but the black hole one I happen to know - it's one of my favorite factoids when I teach about black holes to my astronomy class.

Answer 3

NEUTRON STAR MIGHT WORK..