« previous next »

Author Question: Mars has two moons, Phobos and Deimos. a. True b. False Indicate whether the statement is true ... (Read 100 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Mars has two moons, Phobos and Deimos.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Explain the process that creates a nova.
 
  What will be an ideal response?


Athena23

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

A nova can occur when one star in a close binary system has evolved to become a white dwarf.Mass loss or evolution of the other star can result in mass transfer to the white dwarf. The hydrogen transferred onto the white dwarf accumulates and becomes degenerate. When the temperature of the deposited hydrogen reaches the temperature required for hydrogen fusion, the entire layer ignites in a very short time, creating a burst of energy. This process does not disrupt the white dwarf, and can be repeated.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Size comparison of Earth and Mars. Size comparison of Earth and Mars.
FIRST PICTURE OF MARS FIRST PICTURE OF MARS
An Active Avalanche on Mars An Active Avalanche on Mars
Pluto’s Moons Nix and Hydra Pluto’s Moons Nix and Hydra
Viking Mars Lander Viking Mars Lander
Early in the twentieth century, when malnutrition was common, companies such as this one advertised Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Video: How antibiotics works? 💊

For a complete list of videos, visit our video library