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

Author Question: Most of the galaxies in the Local Group are: A) big spirals like our Galaxy and M31. B) small ... (Read 88 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
on: Jul 27, 2018
Most of the galaxies in the Local Group are:
 
  A) big spirals like our Galaxy and M31.
  B) small spirals like M33 and the LMC.
  C) small irregulars like the Magellanic Clouds.
  D) active galaxies like Centaurus A.
  E) small ellipticals like the companions to M31 in Andromeda.

Question 2

This design involves only one optical surface, a concave mirror.
 
  A) prime focus reflector
  B) Newtonian reflector
  C) Cassegrain reflector
  D) Gregorian reflector
  E) refractor


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

covalentbond

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

A


lbcchick

  • Member
  • Posts: 550
Reply 2 on: Jul 27, 2018
Gracias!

nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Comparison of small subunit (SSU) rRNA gene sequences from three animals and a protist. Comparison of small subunit (SSU) rRNA gene sequences from three animals and a protist.
The elliptical galaxy Centaurus A at visible, far-infrared and x-ray wavelengths. The elliptical galaxy Centaurus A at visible, far-infrared and x-ray wavelengths.
Local Anesthesia in Dentistry Local Anesthesia in Dentistry
Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor
Group Performance Group Performance
Video: Stress and Immune System Animation

For a complete list of videos, visit our video library