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

Author Question: The Earth reversed its magnetic field about how many years ago? A) 700 B) 700,000 C) 11 D) ... (Read 46 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 27, 2018
The Earth reversed its magnetic field about how many years ago?
 
  A) 700
  B) 700,000
  C) 11
  D) 7000
  E) 70,000,000

Question 2

A ray of light, which is traveling in air, is incident on a glass plate at a 45 angle. The angle of refraction in the glass
 
  A) is greater than 45.
  B) is less than 45.
  C) is equal to 45.
  D) is unknown because it all depends on the index of refraction of glass.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yeungji

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


kamilo84

  • Member
  • Posts: 495
Reply 2 on: Jul 27, 2018
Wow, this really help

raenoj

  • Member
  • Posts: 340
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

The Dingo was the first placental mammal introduced to Australia, around 4000 years ago The Dingo was the first placental mammal introduced to Australia, around 4000 years ago
Hare running in open field Hare running in open field
Earth and the Moon Earth and the Moon
The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old. The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old.
A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ... A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ...
Earth 430 Million Years Ago Earth 430 Million Years Ago
Video: Properties of water -structure of water and polarity (Ionized and polar compounds)

For a complete list of videos, visit our video library