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

Author Question: What percentage of a star's total lifetime is spent on the main sequence? A) 100 B) 50 C) 90 D) ... (Read 111 times)

mia

  • Hero Member
  • *****
  • Posts: 564
on: Jul 27, 2018
What percentage of a star's total lifetime is spent on the main sequence?
 
  A) 100 B) 50 C) 90 D) 20 E) 10

Question 2

The observable universe is the same size today as it was a few billion years ago.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frejo

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

FALSE


mia

  • Member
  • Posts: 564
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Body plan of an echinoderm, as represented by a sea star. Body plan of an echinoderm, as represented by a sea star.
Obtaining protein sequence information with tandem MS Obtaining protein sequence information with tandem MS
Using a scan tool to check for IAC counts or percentage as part of a diagnostic routine. Using a scan tool to check for IAC counts or percentage as part of a diagnostic routine.
Main arteries of the leg Main arteries of the leg
A company purchased 26 desks for $240 each and 18 chairs for $59 each. Compute the total ... A company purchased 26 desks for $240 each and 18 chairs for $59 each. Compute the total ...
A sea star A sea star
Video: Virtual Tour of the Heart

For a complete list of videos, visit our video library