Question

If the next galaxy is approximately 106 light-years away, and 1 ly is approximately 105 AU, then the next galaxy is approximately AU away.

a) 1
b)10
c)105
d)106
e)1010
f)1011
g)1010
h)1015

Answer 1

The next galaxy is approximately 10^11 AU away.

Step-by-step explanation:

To determine the distance in AU, we can use the given conversion factor: 1 light year (ly) is approximately 10^5 AU. Since the next galaxy is approximately 10^6 light-years away, we can multiply this distance by the conversion factor to find the distance in AU:

10^6 ly ÷ 1 ly/10^5 AU = 10^6 x 10^5 AU = 10^11 AU

Therefore, the next galaxy is approximately 10^11 AU away.