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Author Question: In the context of star sizes, which of the following statements is true of a star's luminosity? ... (Read 68 times)

CBme

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on: Jul 27, 2018
In the context of star sizes, which of the following statements is true of a star's luminosity?
 
  A) A hot star may not be very luminous if it has a small surface area.
  B) The luminosity of a star is proportional to its visual wavelength.
  C) A cool star can be luminous if it has a small surface area.
  D) The luminosity of a glowing object is determined by its density.

Question 2

The diagram below shows two stars in a binary system and the center of mass of the system. Based on the diagram, the ratio of the mass of star A to the mass of star B is _____.
 
  A) 2:1
  B) 1:2
  C) 1:3
  D) 3:2


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Natalie4ever

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

A

Answer to Question 2

B


CBme

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Reply 2 on: Jul 27, 2018
:D TYSM

gcook

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Reply 3 on: Yesterday
Excellent

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