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 52 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!

kswal303

  • Member
  • Posts: 316
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Lake 226 at the Experimental Lakes Area divided in half. Lake 226 at the Experimental Lakes Area divided in half.
Image of pitcher plant mosquito Wyeomyia smithii, showing segmentation and partial anatomy of circul Image of pitcher plant mosquito Wyeomyia smithii, showing segmentation and partial anatomy of circul
Magnetic resonance imaging (MRI) image demonstrating a back herniated disk. Magnetic resonance imaging (MRI) image demonstrating a back herniated disk.
A coronary artery bypass graft (CABG) is a procedure to bypass a blocked coronary artery. The proced A coronary artery bypass graft (CABG) is a procedure to bypass a blocked coronary artery. The proced
The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ... The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ...
An electrochemical cell is based on these two half-reactions An electrochemical cell is based on these two half-reactions
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library