bryceisabeast1107 bryceisabeast1107
  • 05-08-2021
  • Physics
contestada

If star A is 20 light years away from earth and star B is 40 light years away from earth,which star appears brighter and by what factor?

Respuesta :

sakshisetia56 sakshisetia56
  • 05-08-2021

Answer:

Because Star A and Star B have identical luminosities, the difference in their apparent brightness is due solely to distance. Star B is twice as far from Earth as Star A.

Explanation:

Answer Link

Otras preguntas

which statement explains the periodic table and how is arranged. A. the periodic table is arranged by decreasing atomic mass. B. the periodic table is arranged
write a real word problem that results in an answer of 0.58
what properties do scientists use to identify minerals
71 is 10 less than my number
how did ordinary citizens play a role in spartan oligarchy?
Which pair of ratios form a proportion? A. 5 : 11 and 6 : 12 B. 7 : 13 and 21 : 39 C. 8 : 14 and 24 : 30 D. 10 : 20 and 20 : 30 Please help me.
what is a watt equivalent to in terms of kilograms, meters and seco
where did the cival war begin a Gettysburg b fort sumter c Appomattox d manassas
What is a strategy a reader can use to understand better what he has read?
which country in Europe with 2000 islands is often shaken by earthquakes