krissylee569 krissylee569
  • 16-12-2022
  • Physics
contestada

Our sun is 2.3×10 4ly (light- years) from the center of our Milky Way galaxy and is moving in a circle around that center at a speed of 250 km/s. (a) How long does it take the Sun to make one revolution about the galactic center (b) How many revolutions has the sun completed since it was formed about 4.5×10 9years ago

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