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 88 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?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Extended Objects Create a Focal Plane Extended Objects Create a Focal Plane
Evidence of Water on Mars Evidence of Water on Mars
Evidence for big game hunting by archaic H. sapiens is suggested by the excavations at the Boxgrove Evidence for big game hunting by archaic H. sapiens is suggested by the excavations at the Boxgrove
The “Old Man” from La Chapelle shows evidence of extensive tooth loss and bone resorption. The “Old Man” from La Chapelle shows evidence of extensive tooth loss and bone resorption.
Four pieces of evidence that the reticular formation is involved in sleep. Four pieces of evidence that the reticular formation is involved in sleep.
Early geologists discovered evidence of past glaciations in U-shaped valleys Early geologists discovered evidence of past glaciations in U-shaped valleys
Video: Simple Diffusion - Ion transport

For a complete list of videos, visit our video library