Author Question: What is the approximate surface temperature of a star with weak hydrogen absorption lines and strong ... (Read 72 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
What is the approximate surface temperature of a star with weak hydrogen absorption lines and strong absorption lines of ionized calcium?
 
  A) 4,500 K B) 6,500 K C) 5,500 K D) 3,500 K

Question 2

Which jovian planet should have the most extreme seasonal changes?
 
  A) Uranus B) Saturn C) Neptune D) Jupiter



tkempin

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

C

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

For a complete list of videos, visit our video library