« previous next »

Author Question: ___________ is (are) observed when light from a distant quasar travels past a massive galaxy between ... (Read 61 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
on: Jul 27, 2018
___________ is (are) observed when light from a distant quasar travels past a massive galaxy between us and the quasar, and this light is focused to form two or more images of the same quasar.
 
  a. A double-lobed radio galaxy
  b. Superluminal expansion
  c. The gravitational lens effect
  d. A blazar
  e. Gravitational waves

Question 2

If the stars at the turnoff point of a cluster have a mass of 3M, what is the age of the cluster?
 
  a. 3.01010 years
  b. 3.3109 years
  c. 6.4108 years
  d. 1.61011 years
  e. The age of a star cluster cannot be determined from the mass of stars at the turnoff point.


mfedorka

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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.

Ultraviolet mosaic of Mira's bow shock and tail obtained using NASA's Galaxy Evolution Exp Ultraviolet mosaic of Mira's bow shock and tail obtained using NASA's Galaxy Evolution Exp
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Couples whose marriages have become distant or hostile can make changes in their patterns of ... Couples whose marriages have become distant or hostile can make changes in their patterns of ...
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation. Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.
Testing the corneal light reflex Testing the corneal light reflex
A small 355-g box hangs from one end of a thin light string that goes over a frictionless ... A small 355-g box hangs from one end of a thin light string that goes over a frictionless ...
Video: The Nerve Impulse

For a complete list of videos, visit our video library