Recent content by Ki_Ryn

  1. K

    Is 34% far or slightly smaller than 100%?

    You're correct in that these were options on a test. Thank you for the input.
  2. K

    Is 34% far or slightly smaller than 100%?

    Is 34% "far" or "slightly" smaller than 100%? I'm looking for a number of opinions on the question reproduced below as I'm currently in a disagreement regarding the results. The observed density of matter (both luminous and dark) is roughly 34% of the critical density needed for a flat...
  3. K

    Newton's 3rd Law applied to binary stars

    Below is a question I recently got wrong, and the (automated) feedback. Since the stars are in a stable configuration, I realize that the forces must be equal, but I thought that the differing gravitational forces were balanced by the centripetal forces of the orbit (the smaller star being...
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