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Author Question: Mars has two moons, Phobos and Deimos. a. True b. False Indicate whether the statement is true ... (Read 109 times)

cherise1989

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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

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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.


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