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

Author Question: Measured ages of globular clusters suggests that the Universe is about a. 1.4 billion years old. ... (Read 85 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
Measured ages of globular clusters suggests that the Universe is about
 
  a. 1.4 billion years old.
  b. 14 billion years old.
  c. 140 billion years old.

Question 2

What properties of degenerate matter are important to the structure of stars? Why?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stillxalice

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

b

Answer to Question 2

Degenerate matter is when a gas is so dense that the electrons are not free to change their energy. Degenerate gas resists compression. To compress the gas requires pushing against the moving electrons, and changing their motions means changing their energy. That requires tremendous effort because you must boost them to the top of the energy ladder, which is why degenerate matter is harder to compress than the toughest hardened steel. The pressure of a degenerate gas does not depend on temperature. Pressure depends on the speed of the electrons, which can't be changed without tremendous effort. The temperature, however, depends on the motion of all the particles in the gas, both electrons and nuclei, so if you add heat to the gas, most of that energy goes into speeding up the motions of the nuclei, which move slowly and don't contribute much to the pressure. So changing the temperature of the gas has almost no effect on pressure.




CharlieWard

  • Member
  • Posts: 578
Reply 2 on: Jul 27, 2018
Gracias!


cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

For a complete list of videos, visit our video library