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

Author Question: What was the first evidence that quasars were different from astronomical objects before they were ... (Read 82 times)

Sportsfan2111

  • Hero Member
  • *****
  • Posts: 585
on: Jul 27, 2018
What was the first evidence that quasars were different from astronomical objects before they were observed in visual wavelengths?
 
  a. The first quasars were seen to have fuzz.
  b. Quasars emitted radio energy like active galaxies, but appeared to be point sources in radio wavelengths.
  c. Quasars showed significant gravitational lens effects.
  d. The spectra of quasars looked like that of an M dwarf.
  e. The larger redshifts originally indicated that they were orbiting the center of the Milky Way.

Question 2

Helium flash occurs
 
  a. because helium is very explosive and cannot be controlled when the nuclear reactions occur.
  b. because degenerate gas does not allow the core to expand as it heats up.
  c. in Cepheid variables.
  d. in stars with masses less than 0.4 M.
  e. None of the other choices are correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yasmina

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

b


Sportsfan2111

  • Hero Member
  • *****
  • Posts: 585
Reply #2 on: Jul 27, 2018
TY


yasmina

  • Sr. Member
  • ****
  • Posts: 323
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

All objects in the image are distant galaxies – not stars All objects in the image are distant galaxies – not stars
Common skin signs are often evidence of an illness or disorder. A wheal is a localized, evanescent ... Common skin signs are often evidence of an illness or disorder. A wheal is a localized, evanescent ...
Foundations of evidence-based practice. Foundations of evidence-based practice.
Good body mechanics for lifting heavy objects. Good body mechanics for lifting heavy objects.
Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme
Hierarchy of scientific evidence Hierarchy of scientific evidence
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

For a complete list of videos, visit our video library