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

Based on these ideas, what are the pro's and con's for both Sexual Reproduction and Asexual reproduction?
A 65-year old woman visits her doctor for her annual check up. she thanks her doctor for the walking regime he suggested five-years-ago, which she still commits
If Keesha wants to add the phrase "from the library" to describe the book, where should she place it in the sentence below? My sister finished reading the book
I have finals next week. Does anybody know any good study tips?
Nasser was angry with the United States for not supporting him in a project in Egypt after A. he made peace with Israel. B. he refused to sign the Baghdad Pact.
How to divide fractions using mixed numbers
If a lot of people buy shoes from your competition, this will encourage you to _____ prices. raise lower keep constant
Calculate the ph of a 0.400 m nach3co2 solution. ka for acetic acid, ch3co2h, is 1.8×10-5
In the triangle below the value of h is 3/4 the side length labeled on the figure. What is the area of the triangle ?
"!HELP PLEASE!" Which of the four subregions of the eastern united states does not border the atlantic ocean?