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Science-Related Homework Help Astronomy Topic started by: arcticmonkeys9 on Mar 19, 2018



Title: A(n) ____ is well supported (observationally and/or experimentally) system of rules and principles ...
Post by: arcticmonkeys9 on Mar 19, 2018
A(n) ____ is well supported (observationally and/or experimentally) system of rules and principles that can be applied to a wide variety of circumstances but that is not universally accepted.
 
  a. hypothesis
  b. paradigm
  c. theory
  d. model

Question 2

The lower edge of the Main Sequence band is known as ____ and represents the location in the HR-diagram at which stars begin their lives as main sequence stars.
 
  a. the Coulomb barrier
  b. hydrostatic equilibrium
  c. the birth line
  d. the zero-age main sequence
  e. the evolutionary track

Question 3

A(n) ____________ is a description of some natural phenomenon that can't be right or wrong. It is merely a convenient way to think about a natural phenomenon.
 
  a. hypothesis
  b. paradigm
  c. natural law
  d. model
  e. theory

Question 4

The average star spends ____ of its lifetime on the main sequence.
 
  a. 1
  b. 2
  c. 10
  d. 20
  e. 90

Question 5

A(n) ____ is a single conjecture that can be tested.
 
  a. hypothesis
  b. paradigm
  c. natural law
  d. model
  e. theory

Question 6

____ are star-like objects that contain less than 0.08 solar masses an will never raise their core temperatures high enough that the proton-proton chain can begin. Other minor fusion reactions do occur in these objects. They fall in a gap between the low-mass M dwarf stars and the massive planets in which nuclear fusion never occurs.
 
  a. Brown dwarfs
  b. Herbig-Haro objects
  c. Bok globules
  d. T-Tauri star
  e. Main sequence stars


Title: A(n) ____ is well supported (observationally and/or experimentally) system of rules and principles ...
Post by: Rochellleeee on Mar 19, 2018
Answer to q. 1

C

Answer to q. 2

D

Answer to q. 3

D

Answer to q. 4

E

Answer to q. 5

A

Answer to q. 6

A


Title: A(n) ____ is well supported (observationally and/or experimentally) system of rules and principles ...
Post by: arcticmonkeys9 on Mar 19, 2018
Were some really tough homework problems! Thanks for answering all of them correctly