Author Question: Our solar system is located about 27,000 light-years from the galactic center. How far does our ... (Read 74 times)

nummyann · **on:** Jul 27, 2018

Our solar system is located about 27,000 light-years from the galactic center. How far does our solar system travel in one orbit?

A) 85,000 light-years B) 54,000 light-years
C) 100,000 light-years D) 170,000 light-years

Question 2

The Earth has a radius of about 6,000 km. How long would it take for an object traveling at the speed of light to circle the earth? (Recall that the speed of light is 300,000 km/s)

A) 1/300,000 of a second (0.0000033 s) B) 1/ 6000 of a second (0.00015 s)
C) 1/2 of a second (0.5 s) D) 1/50 of a second (0.02s)