« previous next »

Author Question: The Orion Nebula, M-42, is a hot, thin cloud of glowing gas, so its spectrum is: (Read 1160 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?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Thin-Leafed Coneflower Thin-Leafed Coneflower
The Crab Nebula and Pulsar The Crab Nebula and Pulsar
Condensation and Cloud Formation Condensation and Cloud Formation
Cloud Patterns Associated with Midlatitude Cyclone Cloud Patterns Associated with Midlatitude Cyclone
The Visible Spectrum of Electromagnetic Energy The Visible Spectrum of Electromagnetic Energy
The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library