Author Question: All of the following are clusters of galaxies EXCEPT: A) Andromeda. B) Perseus. C) Coma. D) ... (Read 24 times)

littleanan

  • Hero Member
  • *****
  • Posts: 575
All of the following are clusters of galaxies EXCEPT:
 
  A) Andromeda.
  B) Perseus.
  C) Coma.
  D) Virgo.
  E) Hydra.

Question 2

In comparing first magnitude Deneb with second magnitude Polaris, we find that:
 
  A) Polaris is in reality much more luminous.
  B) Deneb must be much hotter than Polaris.
  C) Deneb appears 2.5 times brighter to us than does Polaris.
  D) Polaris is really 100 times brighter than nearby Deneb.
  E) Deneb is really much closer than Polaris.



TheNamesImani

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

For a complete list of videos, visit our video library