« previous next »

Author Question: A parsec is I. a unit of length used in astronomy II. 2.06 105 AU III. the distance to an imaginary ... (Read 52 times)

tichca

  • Hero Member
  • *****
  • Posts: 554
on: Jul 27, 2018
A parsec is I. a unit of length used in astronomy II. 2.06  105 AU III. the distance to an imaginary star whose stellar parallax is one arc second IV. 3.26 light years V. the longest unit of length in astronomy
 
  a. I, II, V b. II, IV
  c. I, III, IV, V d. I, II, III, IV, IV

Question 2

Hypernovae are
 
  a. supernovae that occur when two red dwarfs collide.
  b. supernovae that occur when 10-solar-mass stars explode.
  c. supernovae that occur when stars more massive than 25 solar masses explode.
  d. one theory to explain the production of gamma-ray bursters.
  e. supernovae that occur when stars more massive than 25 solar masses explode and one theory to explain the production of gamma-ray bursters.


mohan

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

e


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

The mammalian urinary system including the basic functional unit of the nephron. The mammalian urinary system including the basic functional unit of the nephron.
Small nuclear RNAs (snRNA), 100-200 bp in length, form part of the splicing mechanisms to process mR Small nuclear RNAs (snRNA), 100-200 bp in length, form part of the splicing mechanisms to process mR
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
Controlled cold compression unit. Controlled cold compression unit.
How to evaluate angles using sine, special triangles, the unit circle (Part 1) How to evaluate angles using sine, special triangles, the unit circle (Part 1)
RÜFÜS DU SOL Treat You Better (Official Full Length Video) RÜFÜS DU SOL Treat You Better (Official Full Length Video)
Video: Embryonic development - Weeks 5 to 8

For a complete list of videos, visit our video library