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 109 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
:D TYSM

JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

A single cell wide-band oxygen sensor has four wires with two for the heater and two for the sensor ... A single cell wide-band oxygen sensor has four wires with two for the heater and two for the sensor ...
Viral single-strand DNA (circular) Viral single-strand DNA (circular)
A single-nucleotide change in the DNA encoding -globin A single-nucleotide change in the DNA encoding -globin
Write in vertex form by completing the square Write in vertex form by completing the square
A thin laser beam traveling in air strikes the surface of a glass plate at 41.2° with the ... A thin laser beam traveling in air strikes the surface of a glass plate at 41.2° with the ...
Dry outgrowths of the ovary wall of a maple (Acer) fruit form “wings” that catch the wind and ... Dry outgrowths of the ovary wall of a maple (Acer) fruit form “wings” that catch the wind and ...
Video: Glycolysis - and oxygen

For a complete list of videos, visit our video library