« previous next »

Author Question: What is the approximate surface temperature of a star with weak hydrogen absorption lines and strong ... (Read 30 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Surface Tension Surface Tension
The Sun's Surface The Sun's Surface
Change in air temperature at various air flow rates for a 2 pass operation Change in air temperature at various air flow rates for a 2 pass operation
Ionic Equilibria - Weak Acid and their conjugate Base Ionic Equilibria - Weak Acid and their conjugate Base
Summary of the formation, circulation, and absorption of cerebrospinal fluid (CSF) Summary of the formation, circulation, and absorption of cerebrospinal fluid (CSF)
Brittle Star Brittle Star
Video: Requirements for nervous signals

For a complete list of videos, visit our video library