Author Question: How many stars can you see with your naked eye on a clear, moonless night from a dark location? ... (Read 74 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
How many stars can you see with your naked eye on a clear, moonless night from a dark location?
 
  A) fewer than a thousand
  B) a few thousand
  C) about ten thousand
  D) about a hundred thousand
  E) more than you could count in your lifetime

Question 2

A 20 solar mass star will stay on the main sequence for 10 million years, yet its iron core can exist for only a
 
  A) day.
  B) week.
  C) month.
  D) year.
  E) century.



sokh

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

B

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
Both answers were spot on, thank you once again



sokh

  • Sr. Member
  • ****
  • Posts: 357

 

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?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

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.

For a complete list of videos, visit our video library