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

Author Question: Neutral hydrogen can be detected because its electron occasionally ________ its spin and creates the ... (Read 54 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Jul 27, 2018
Neutral hydrogen can be detected because its electron occasionally ________ its spin and creates the 21-cm emission line for radio observers.
 
  Fill in the blank(s) with correct word

Question 2

The one term of the Drake equation whose value remains completely unknown is the average lifetime of a technological civilization.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vickybb89

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 27, 2018
Answer to Question 1

flips or switches or reverses

Answer to Question 2

TRUE


justinmsk

  • Member
  • Posts: 524
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

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?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Your heart beats over 36 million times a year.

Electron Microscope Electron Microscope
Electron sharing in covalent bond Electron sharing in covalent bond
Electron Micrograph of Translation Electron Micrograph of Translation
Which is the most acceptable electron dot structure for N2H2? Which is the most acceptable electron dot structure for N2H2?
Polyribosomes as seen under the electron microscope Polyribosomes as seen under the electron microscope
n electron micrograph revealing nucleosomes appearing as “beads" n electron micrograph revealing nucleosomes appearing as “beads"
Video: Automated external defibrillator (AED)

For a complete list of videos, visit our video library