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

Author Question: When strong solar winds are displaced poleward by our magnetic fields, we get A) the Van Allen ... (Read 18 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
on: Jul 27, 2018
When strong solar winds are displaced poleward by our magnetic fields, we get
 
  A) the Van Allen radiation belts.
  B) intense auroral displays.
  C) sunspots.
  D) hurricanes in the tropics.
  E) droughts and dust bowls in the American West.

Question 2

Explain how the shifting spectral lines of spectroscopic binaries let us find their periods.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

FergA

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

When aligned in our line of sight, there is no radial velocity, and all lines appear single. A quarter of a period later, one is approaching us with its line blue shifted, and the other is receding. Multiply this time span by four, and the two stars are back in the original positions.


jayhills49

  • Member
  • Posts: 559
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

at

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Motion of the barycenter of the Solar System relative to the Sun Motion of the barycenter of the Solar System relative to the Sun
Allen Test: A patent ulnar artery reveals the return of palm perfusion despite radial artery compres Allen Test: A patent ulnar artery reveals the return of palm perfusion despite radial artery compres
The Formation of the Solar System The Formation of the Solar System
Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent
Overview of the Solar System Overview of the Solar System
Vision-based Magnetic Compass in European Robins Vision-based Magnetic Compass in European Robins
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library