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Author Question: Star A has an apparent magnitude of 3 and Star B has an apparent magnitude of 5. Which star is ... (Read 85 times)

xroflmao

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on: Jul 27, 2018
Star A has an apparent magnitude of 3 and Star B has an apparent magnitude of 5. Which star is brighter in our sky?
 
  A) Star A
  B) Star B
  C) The two stars have the same brightness in our sky, but Star A is closer to us than Star B.
  D) There is not enough information to answer the question.

Question 2

The Chandra X-Ray Observatory must operate in space because
 
  A) X-rays are too dangerous to be allowed on the ground.
  B) X-rays do not penetrate Earth's atmosphere.
  C) X-ray telescopes require the use of grazing incidence mirrors.
  D) It was built by NASA.


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marict

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


xroflmao

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  • Posts: 515
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

alexanderhamilton

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Reply 3 on: Yesterday
Excellent

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