- #1

- 23

- 0

What is the high enough density?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter klite
- Start date

- #1

- 23

- 0

What is the high enough density?

- #2

Nabeshin

Science Advisor

- 2,205

- 16

Mathematically,

[tex]r_s=\frac{2Gm}{c^2}=r[/tex]

If you assume the object to be a uniform sphere, we can write its mass as the product of density and volume:

[tex]m=\rho V=\frac{4/3}\rho\pi r^3[/tex]

And substituting into the first equation,

[tex]r=\frac{2G(\frac{4/3}\rho\pi r^3){c^2} [/tex]

[tex]\rho=\frac{3}{8}\frac{c^2}{G\pi r^2}[/tex]

In a completely classical universe.

Share:

- Replies
- 2

- Views
- 3K

- Replies
- 6

- Views
- 1K

- Replies
- 5

- Views
- 2K