Our Sun is 2.3 x 10 4 ly (light-years) from the center of our Milky Way galaxy
Question:
Our Sun is 2.3 x 104 ly (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 x 109 years ago?
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a The time for one revolution is the circumference of ...View the full answer
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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