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 10 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
YES! Correct, THANKS for helping me on my review

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

A treatment for blocked blood vessels. A treatment for blocked blood vessels.
3D image of a melanoma cell 3D image of a melanoma cell
Cryptorchidism. (a) In complete cryptorchidism, the testes of a newborn have failed to descend into Cryptorchidism. (a) In complete cryptorchidism, the testes of a newborn have failed to descend into
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po
Mirror Neurons in Musicians Mirror Neurons in Musicians
Video: Cell mediated immune response to a viral infection Animation

For a complete list of videos, visit our video library