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

Author Question: Why is a complete image formed even if half of a lens or mirror is blocked? What will be an ideal ... (Read 48 times)

Davideckstein7

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Why is a complete image formed even if half of a lens or mirror is blocked?
 
  What will be an ideal response?

Question 2

Explain as exactly as possible the way in which the central engine of active galaxies and quasars actually works. Why is the orientation so important?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

maya.nigrin17@yahoo.com

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 27, 2018
Answer to Question 1

While the image formed is only half as bright, each part of the objective sees and images the entire object.

Answer to Question 2

Matter from an accretion disk falls into a supermassive black hole. As it does so, it accelerates and emits energy. About 20 of the energy from the mass falling in (from mass-energy conversion, E = mc2 ) is radiated off. This energy may escape, or be absorbed by outer layers and re-radiated, or sent off as high-energy jets which give rise to radio lobes. What we see from Earth depends greatly on whether we see it from the side as radio lobes, or from the top as a blazar.


Davideckstein7

  • Member
  • Posts: 555
Reply 2 on: Jul 27, 2018
Gracias!

scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

A breech birth. This image illustrates a newborn that has been delivered buttocks first. A breech birth. This image illustrates a newborn that has been delivered buttocks first.
Formed elements of blood: erythrocytes, leukocytes (neutrophils, eosinophils, basophils, lymphocytes Formed elements of blood: erythrocytes, leukocytes (neutrophils, eosinophils, basophils, lymphocytes
Mosaic image of the lunar south pole of the Moon Mosaic image of the lunar south pole of the Moon
Structures formed by phospholipids in an aqueous environment: Micelle Structures formed by phospholipids in an aqueous environment: Micelle
What are examples of ideal forms? What are examples of ideal forms?
HELP WITH IMAGE PLEASE HELP WITH IMAGE PLEASE
Video: Electrical changes in the heart

For a complete list of videos, visit our video library