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

Author Question: If the magnitude difference between one star and another is 8, the stars differ in brightness by a ... (Read 65 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
If the magnitude difference between one star and another is 8, the stars differ in brightness by a factor of
 a. 2.51.
  b. 20.
  c. 7.
  d. 1580.

Question 2

When many of the atoms or molecules in a sample have been excited into a metastable state, a(n) ______________ has occurred.
 a. ultraviolet catastrophe
  b. population inversion
  c. coherent emission
  d. incoherent absorption


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

enass

  • Sr. Member
  • ****
  • Posts: 380
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

b


humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 28, 2018
Thanks


enass

  • Sr. Member
  • ****
  • Posts: 380
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Pre–Main-Sequence Stars Pre–Main-Sequence Stars
A Mass-Loss Star A Mass-Loss Star
Difference Between a Sidereal Month and a Synodic Month Difference Between a Sidereal Month and a Synodic Month
Resting Membrane Potential: Voltage Difference Resting Membrane Potential: Voltage Difference
An electron is accelerated from rest through a potential difference. After acceleration the ... An electron is accelerated from rest through a potential difference. After acceleration the ...
Solve Diophantus’s Problem B–8: To find two numbers such that their difference a Solve Diophantus’s Problem B–8: To find two numbers such that their difference a
Video: Metaphase I Animation

For a complete list of videos, visit our video library