« previous next »

Author Question: In the context of the mass-luminosity relation, a star with a mass of 2 solar masses on the main ... (Read 61 times)

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
In the context of the mass-luminosity relation, a star with a mass of 2 solar masses on the main sequence would have a luminosity of approximately _____ solar luminosities.
 
  A) 2.5
  B) 4
  C) 11
  D) 0.5

Question 2

Which of the following statements is true of white dwarfs?
 
  A) Some of them are among the hottest stars known.
  B) Few of them are positioned in the upper-right corner of the Hertzsprung-Russell (H-R) diagram.
  C) They have high luminosities.
  D) They have a very big surface area from which they radiate energy.


dpost18

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 27, 2018
TY


dpost18

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Artist's conception of the birth of a star within a dense molecular cloud. Artist's conception of the birth of a star within a dense molecular cloud.
Solar Granulation Solar Granulation
Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
Main lymph nodes of the arm Main lymph nodes of the arm
A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ... A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ...
Variation in Solar Intensity With Latitude Variation in Solar Intensity With Latitude
Video: Transcription - Introns and exons

For a complete list of videos, visit our video library