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  1. A

    Astrophysics, star collision

    i figure 4 due to assuming 1 star on every corner one a square. i assume one of my answers is right, but i don't know which.
  2. A

    Astrophysics, star collision

    i figure the number of particles is 4 per (3.1*10^18)^2. and no, i don't expect there to be a collision with the sun and another star. that's one of the reasons i posted this question. it seems almost absurd. but it's a homework problem nonetheless. any help is appreciated.
  3. A

    Astrophysics, star collision

    Homework Statement The problem is assume Andromeda and the Milky Way are going to collide. the relative speed of them moving is 10^6m/s. assume each star has the radius of our sun (6.955*10^8m) the distance between each star is 3.1*10^18 m. how long will it take for a star to collide with...
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