« previous next »

Author Question: The Orion Nebula, M-42, is a hot, thin cloud of glowing gas, so its spectrum is: (Read 1116 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?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Uranus's southern hemisphere in approximate natural colour (left) and in shorter wavelengths (r Uranus's southern hemisphere in approximate natural colour (left) and in shorter wavelengths (r
Prizm Spectrum Prizm Spectrum
A Dark Nebula A Dark Nebula
The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve. The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve.
Cloud Types: Vertical Development Cloud Types: Vertical Development
Vitamin C contributes to healthy, glowing skin by facilitating the production of collagen Vitamin C contributes to healthy, glowing skin by facilitating the production of collagen
Video: Role of the urinary system - acidosis and alkalosis

For a complete list of videos, visit our video library