This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: When excited electrons decay to ground state, hydrogen emits along distinctive line near the visible ... (Read 95 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
on: Feb 28, 2020
When excited electrons decay to ground state, hydrogen emits along distinctive line near the visible red. An astronomer observes what appear to be hydrogen emission lines from a distant star but they are in the infrared spectral band. She concludes ________.
◦ the star must be moving very fast away from Earth
◦ the star's hydrogen emission must be being absorbed by water in the atmosphere, which then re-emits in the infrared
◦ her instrument needs to be recalibrated
◦ the star must be moving very fast toward Earth
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by jazziefee on Feb 28, 2020

bookworm410

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly


jazziefee

  • Member
  • Posts: 505
Reply 2 on: Feb 28, 2020
:D TYSM

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Everyone has one nostril that is larger than the other.

The small dorsal fin of this blue whale is just visible on the far left. The small dorsal fin of this blue whale is just visible on the far left.
Dial-A-Flo in-line device to regulate IV flow. Dial-A-Flo in-line device to regulate IV flow.
Common hydrogen bonds in biological systems Common hydrogen bonds in biological systems
Water, Hydrogen, Methane Water, Hydrogen, Methane
Electron configuration and how many electrons are needed to achieve the nearest noble-gas ... Electron configuration and how many electrons are needed to achieve the nearest noble-gas ...
The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ... The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ...
Video: Smoking Cessation

For a complete list of videos, visit our video library