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

Author Question: The ________ focus reflector needs only a single optical surface to form images. Fill in the ... (Read 86 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
on: Jul 27, 2018
The ________ focus reflector needs only a single optical surface to form images.
 
  Fill in the blank(s) with correct word

Question 2

Relate black holes in the early galaxies to quasars.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

quynhmickitran

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 27, 2018
Answer to Question 1

prime

Answer to Question 2

Star-produced black holes in young galaxies could migrate to their centers. As the black holes merged and formed supermassive black holes, the accretion of matter around them created the quasar outpouring of energy.


EAugust

  • Member
  • Posts: 550
Reply 2 on: Jul 27, 2018
Wow, this really help

okolip

  • Member
  • Posts: 362
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

The Sun as it appears from the surface of Earth during the middle of the day The Sun as it appears from the surface of Earth during the middle of the day
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
DNA consists of two complementary strands wound around each other to form DNA consists of two complementary strands wound around each other to form
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Optical and Radiation Pyrometry Experiment Optical and Radiation Pyrometry Experiment
Testcross of a single character Testcross of a single character
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library