« previous next »

Author Question: The Orion Nebula, M-42, is a hot, thin cloud of glowing gas, so its spectrum is: (Read 1158 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 human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Numerous Thin Ringlets Constitute Saturn’s Inner Rings Numerous Thin Ringlets Constitute Saturn’s Inner Rings
Distribution of Thunderstorms: Detailed data on cloud-to-ground lightning flashes have been ... Distribution of Thunderstorms: Detailed data on cloud-to-ground lightning flashes have been ...
Basic Cloud Types Basic Cloud Types
Rainbow Spectrum Connection To The Cheops Pyramid Rainbow Spectrum Connection To The Cheops Pyramid
A small 355-g box hangs from one end of a thin light string that goes over a frictionless ... A small 355-g box hangs from one end of a thin light string that goes over a frictionless ...
The Visual Spectrum The Visual Spectrum
Video: Basic rhythm - control centers in medulla oblongata, spirograph and normal tidal cycle

For a complete list of videos, visit our video library