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

Author Question: Soon after discovery, it was observed that quasars had a starlike appearance which was blurred by ... (Read 17 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
on: Jul 27, 2018
Soon after discovery, it was observed that quasars had a starlike appearance which was blurred by Earth's atmospheric seeing. Despite the blurring, it was realized that the intense energy-emitting regions of quasars must be small because they
 
  a. have high radial velocities.
  b. are very luminous.
  c. are surrounded by quasar fuzz.
  d. radiate huge amounts of energy.
  e. fluctuate rapidly on time scales as short as a few hours.

Question 2

The Crab nebula is
 
  a. a planetary nebula.
  b. a Bok globule.
  c. an open cluster.
  d. an absorption nebula.
  e. a supernova remnant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 27, 2018
Answer to Question 1

e

Answer to Question 2

e


laurencescou

  • Hero Member
  • *****
  • Posts: 593
Reply #2 on: Jul 27, 2018
Thanks


pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

The discovery of aquaporins, water channels made of a transmembrane protein. The discovery of aquaporins, water channels made of a transmembrane protein.
Female choice based on male appearance. Female choice based on male appearance.
The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006. The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
The declining age of menarche over the past 150 years has been measured in many European countries, The declining age of menarche over the past 150 years has been measured in many European countries,
The thymus gland (A) appearance and position and (B) anatomical structures. The thymus gland (A) appearance and position and (B) anatomical structures.
The discovery of the retinohypothalamic tracts. Neurons from each retina project to both ... The discovery of the retinohypothalamic tracts. Neurons from each retina project to both ...
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library