This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In the context of star sizes, which of the following statements is true of a star's luminosity? ... (Read 42 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


CBme

  • Member
  • Posts: 548
Reply 2 on: Jul 27, 2018
Wow, this really help

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Betelgeuse star (Hubble) Betelgeuse star (Hubble)
Betelgeuse star (Hubble) Betelgeuse star (Hubble)
A Star with Three Planets A Star with Three Planets
Region’s Culture in International Context Region’s Culture in International Context
Midsagittal section indicating locations of true and false pelves Midsagittal section indicating locations of true and false pelves
Mottled Sea Star (Evasterias troschelii) eating a clam, Alaska. Mottled Sea Star (Evasterias troschelii) eating a clam, Alaska.
Video: Miller's reaction chamber experiment Animation

For a complete list of videos, visit our video library