« previous next »

Author Question: The Orion Nebula, M-42, is a hot, thin cloud of glowing gas, so its spectrum is: (Read 1168 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Aug 28, 2013
The Orion Nebula, M-42, is a hot, thin cloud of glowing gas, so its spectrum is:
A) a continuum, strongest in the color red.
B) a few bright lines against a dark background.
C) a few dark line in the continuum.
D) a continuum, but with both bright and dark lines mixed in.
E) not in the visible portion of the spectrum.


notis

  • Hero Member
  • *****
  • Posts: 596
Reply #1 on: Aug 28, 2013
I know the answer! It's B.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

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.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Glowing Waves Explained Glowing Waves Explained
Prisms and a Spectrum Prisms and a Spectrum
Spectrum of a High-Redshift Quasar Spectrum of a High-Redshift Quasar
A typical hacksaw that is used to cut metal. If cutting sheet metal or thin objects, then use a ... A typical hacksaw that is used to cut metal. If cutting sheet metal or thin objects, then use a ...
Thin disk specimens of aluminum oxide Thin disk specimens of aluminum oxide
CCS, BECS, biochar, cloud albedo, and ocean fertilization CCS, BECS, biochar, cloud albedo, and ocean fertilization
Video: Cellular slime mold life cycle Animation

For a complete list of videos, visit our video library