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

Author Question: Contrast the internal structures and properties of neutron stars with white dwarf and main sequence ... (Read 110 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
on: Jul 27, 2018
Contrast the internal structures and properties of neutron stars with white dwarf and main sequence stars.
 
  Specifically, what processes in each balance the inward pull of gravity; what are their energy sources; and what are their sizes, densities, and temperatures?

Question 2

What does angular resolution measure?
 
  A) the angular size of the smallest features that the telescope can see
  B) the brightness of an image
  C) the size of an image
  D) the number of electromagnetic waves captured by an image


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sailorcrescent

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

Main sequence: Internal structure is hydrogen fusing to helium, which provides energy. Outward heat pressure balances gravity. Size: around 106 km. Density: 103 kg/m3. Temperature: 107 K in core, 6000 K at surface.
White dwarf: Internal structure is ultra-compressed carbon; energy from residual heat; gravity balanced by electron degeneracy; Size: 104 km; Density: 109 kg/m3; Temperature: 5  104 K at surface.
Neutron star: Internal structure is tight-packed neutrons; gravity balanced by neutron degeneracy; energy from rotational kinetic energy and residual heat; Size: 10 km; Density: 1018 kg/m3; Temperature: unknown.

Answer to Question 2

A


dollx

  • Member
  • Posts: 558
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

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?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Structures of the Mouth Structures of the Mouth
Options for Legal Structures Cont. Options for Legal Structures Cont.
Structures of the ionized forms of some representative fatty acids (part 2) Structures of the ionized forms of some representative fatty acids (part 2)
Structures of the neck Structures of the neck
Summary of Structures of the Ear Summary of Structures of the Ear
Properties of Bacterial DNA Polymerases I, II, and III Properties of Bacterial DNA Polymerases I, II, and III
Video: Condensation and Hydrolysis Animation

For a complete list of videos, visit our video library