This topic contains a solution. Click here to go to the answer

Author Question: When they were first discovered, quasars appeared to be____. a. small, star-like objects ... (Read 82 times)

Tazate

  • Hero Member
  • *****
  • Posts: 532
When they were first discovered, quasars appeared to be____.
 
  a. small, star-like objects associated with radio emission
  b. pairs of radio sources
 c. elliptical galaxies with an X-ray emitting halo
 d. clouds of gas glowing with green emission lines
 e. linear jets of matter

Question 2

A spectrum that displays a smooth variation in intensity over a range of wavelengths with breaks where no energy is observed at specific wavelengths is a(n) ____ spectrum.
 
  a. absorption
  b. emission
 c. continuous
  d. Doppler
 e. ionization



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

SomethingSomething

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

a

Answer to Question 2

a





 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Medication errors are three times higher among children and infants than with adults.

For a complete list of videos, visit our video library