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

Author Question: What is the name for a period of time when the magnetic field is oriented in the opposite direction? ... (Read 211 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558
on: Jul 16, 2018
What is the name for a period of time when the magnetic field is oriented in the opposite direction?
 
  A) a magnetic reversal
  B) a reversed polarity interval
  C) a normal polarity reversal
  D) an underage polarity

Question 2

Approximately how long has it been since the last magnetic reversal?
 
  A) 1,780 years
  B) 17,800 years
  C) 780,000 years
  D) 1.768 million years


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

peter

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


Haya94

  • Member
  • Posts: 558
Reply 2 on: Jul 16, 2018
Excellent

rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Vision with macular degeneration is experienced with an inability to focus in the center of the visu Vision with macular degeneration is experienced with an inability to focus in the center of the visu
Transdermal patch administration: (b) patch immediately applied to clean, dry, hairless skin and lab Transdermal patch administration: (b) patch immediately applied to clean, dry, hairless skin and lab
Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio
Add movement to skin lifting by gently pulling it in a certain direction (e.g., up and forward) to ... Add movement to skin lifting by gently pulling it in a certain direction (e.g., up and forward) to ...
Magnetic Reversals and Seafloor Spreading Magnetic Reversals and Seafloor Spreading
A current-carrying wire is placed in a uniform magnetic field, as shown below. A current-carrying wire is placed in a uniform magnetic field, as shown below.
Video: Dietary Cholesterol & LDL

For a complete list of videos, visit our video library