This topic contains a solution. Click here to go to the answer

Author Question: In what ways do the magnetic fields of both Uranus and Neptune defy the conventional Dynamo Theory ... (Read 42 times)

meagbuch

  • Hero Member
  • *****
  • Posts: 568
In what ways do the magnetic fields of both Uranus and Neptune defy the conventional Dynamo Theory for planetary magnetic fields?
 
  What will be an ideal response?

Question 2

Early in the 20th century, our galaxy was estimated to be:
 
  A) about 100,000 ly in diameter.
  B) about 35,000 ly (10 kpc) in diameter.
  C) about 10 million ly in diameter.
  D) not much larger than our solar system.
  E) about 2.5 million ly in diameter.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

adf223

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

The planet's rotation, as the word dynamo implies, is paramount in generating the magnetic field, so the field should align itself with the rotational axis; in other words, the N needle on a compass should really point north. For Saturn, it is fine, but at Earth and Jupiter, the field is off by about 10 degrees. However, for Uranus this magnetic tilt is 59 degrees, and even for Neptune it is 47 degrees off. Also, the core of the planet should contain the electrically conductive fluid that generates the field, but for both green giants, the fields do not pass anywhere close to this core.

Answer to Question 2

B




meagbuch

  • Member
  • Posts: 568
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

For a complete list of videos, visit our video library