If the Sun becomes a red giant that has a radius 100 times larger than its current radius and a luminosity 1000 times its current luminosity, what will its surface temperature be? (Use the Stefan-Boltzmann equation and solve for T).
If we made a model of the Milky Way that had the diameter of the Earth, how big would the Earth itself be in this shrunken model? (Assume that the Milky Way's diameter is 50 kpc for this problem.)
Given that the Sun moves in a circular orbit of radius 8 kiloparsecs around the center of the Milky Way, and its orbital speed is 220 kilometers per second, work out how long it takes the Sun to complete one orbit of the galaxy.
Can you please show your work. Thank you in advance for helpin me :)
2007-11-18 14:20:16 · 3 answers · asked by djstylez1987 1 in Science & Mathematics ➔ Astronomy & Space
your asking too much here.
thats 3 MAJOR questions and people here are not willing to do that kind of math for 10 points. sorry, but you'll have to do the work yourself
2007-11-18 19:17:30 · answer #1 · answered by Mercury 2010 7 · 1⤊ 0⤋
Yeah, ask your four questions separately. That'll cost you 5 points each, and the four best answerers will get 10 points each. That's fair, and rolling them all into 1 question isn't fair.
2007-11-19 01:56:57 · answer #2 · answered by Anonymous · 0⤊ 0⤋
i believe the shrink is in the direction of or such as 5 photograph voltaic hundreds for the super call to be super sufficient to bypass supernova, and variety a neutron action picture star. in basic words very super stars, better than 50 photograph voltaic hundreds are believed to variety black holes.
2016-11-12 01:14:21 · answer #3 · answered by ? 4 · 0⤊ 0⤋