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 94 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
Wow, this really help

isabelt_18

  • Member
  • Posts: 342
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Bayliss and Starling discovered the mechanism by which the small intestine and pancreas work togethe Bayliss and Starling discovered the mechanism by which the small intestine and pancreas work togethe
The heme group The heme group
Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ... Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ...
The Effect of Group Size on Relationships The Effect of Group Size on Relationships
Structure of a small nuclear RNA (snRNA) Structure of a small nuclear RNA (snRNA)
Spiral Galaxy Messier 83 Spiral Galaxy Messier 83
Video: Red Blood Cells - Erythropoietin (EPO)

For a complete list of videos, visit our video library