kyle9373
contestada

how long does it take for light to reach Earth from a star 8 light years away
A.8 Earth minutes
B.16 Earth minutes
C.8 Earth years
D.16 Earth years​

Respuesta :

Giosmash
D. 16 earth years is the answer

ANSWER:

The "light from a star" that is "8 light years" takes 8 Earth years to reach "Earth".

EXPLANATION:

  • Light travels at an "incredible speed" of "300,000 kilometers per second".
  • The distance between any two objects that are far spread in the universe is measured in either speed of light or astronomical unit (AU).
  • If the distance of the star is "8 light years" away from our "planet", and divide it with the value of speed of light you get 8 earth years.