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

Author Question: Which of the following best describes why a white dwarf cannot have a mass greater than the ... (Read 53 times)

luminitza

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Which of the following best describes why a white dwarf cannot have a mass greater than the 1.4-solar-mass limit?
 
  A) The upper limit to a white dwarf's mass is something we have learned from observations, but no one knows why this limit exists.
  B) Electron degeneracy pressure depends on the speeds of electrons, which approach the speed of light as a white dwarf's mass approaches the 1.4-solar-mass limit.
  C) White dwarfs get hotter with increasing mass, and above the 1.4-solar-mass limit they would be so hot that even their electrons would melt.
  D) White dwarfs are made only from stars that have masses less than the 1.4-solar-mass limit.

Question 2

Which of these would be made up of only Population II stars?
 
  A) Seyfert spirals
  B) Irr type II
  C) elliptical galaxies
  D) barred spirals
  E) Irr type I


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vboyd24

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


luminitza

  • Member
  • Posts: 555
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

hollysheppard095

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Plastid composition of egg cells from green, white, and variegated four-o'clock plants. Plastid composition of egg cells from green, white, and variegated four-o'clock plants.
The greatest bone mass is found around age 30 for both men and women, with the later decline being f The greatest bone mass is found around age 30 for both men and women, with the later decline being f
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
Emanuel Leutze’s Washington Crossing the Delaware (1851) is riddled with historical inaccuracies, mo Emanuel Leutze’s Washington Crossing the Delaware (1851) is riddled with historical inaccuracies, mo
Mass Extinctions Mass Extinctions
Video: Transmission Across a Synapse

For a complete list of videos, visit our video library