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 119 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
YES! Correct, THANKS for helping me on my review

Viet Thy

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Iowa State University's Tornado/Microburst Simulator Iowa State University's Tornado/Microburst Simulator
Electrons Are Shared in Covalent Bonds Electrons Are Shared in Covalent Bonds
Spectral Line Motion in Binary Star Systems Spectral Line Motion in Binary Star Systems
The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da
Water, Hydrogen, Methane Water, Hydrogen, Methane
The illusory bands visible in this figure are often called Mach bands, although Mach used a ... The illusory bands visible in this figure are often called Mach bands, although Mach used a ...
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library