Suppose that two stars in a binary star system are separated by a distance of 80 million kilometers and are located at a distance of 150 light-years from earth.
a) what is the angular separation of the two stars in degrees?
b) what is the angular separation in arceseconds?

Iam stuck on this question! 45 points : ) how do increases in temperature affect the density of ocean water? answer choices: (a) density does not change (b) density increases (c) density becomes variable (d) density decreases

What term is given to the border between the central alps and the southern limestone alps?

Based upon this data, which statement accurately represents the difference between investments in the two stocks? select the best answer from the choices provided.a.  monopower has less volatility but lower returns than ifruit company.b.  monopower has more volatility but lower returns than ifruit company.c.  monopower has more volatility and more liquidity than ifruit company.d.  monopower has less volatility but more liquidity than ifruit company