Hey there,
Your question states: <span>How long does it take for light from a star that is 8 light-years away to reach earth?
It take just about
(</span>
8 earth years) <span> for light from a star that is 8 light-years away to reach earth. That is how </span>

it would take.
Hope this helps.
~Jurgen
<span>Charles Darwin and Alfred Russel Wallace were the ones who had the idea of evolution in 1858!</span>
Answer:
Weight measurement at poles will be slightly more than at equator.
Explanation:
Firstly earth bulges at equator. This makes the body far from earth center at equator than poles. Secondly, the surface centrifugal forces of earth due to rotation also plays vital role in disturbing the gravity value. The centrifugal forces cancel the effect of gravity more at equator than at poles.These factors combine to create difference of about 0.5% in gravity values at pole and equator.
gravity at pole=9.832 m/s^2
gravity at equator=9.780 m/s^2