This topic contains a solution. Click here to go to the answer

Author Question: Which design is subject to chromatic aberration? A) refractor B) prime focus reflector C) ... (Read 116 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
Which design is subject to chromatic aberration?
 
  A) refractor
  B) prime focus reflector
  C) Newtonian reflector
  D) Cassegrain reflector
  E) Gregorian reflector

Question 2

Why does the rotation of a protostar slow down over time?
 
  A) All rotating objects slow down over time.
  B) Magnetic fields can transfer angular momentum to the protostellar disk and protostellar winds can carry angular momentum away.
  C) The onset of fusion causes the rotation rate to slow dramatically.
  D) Magnetic fields of other stars interact with the magnetic fields of the protostars, slowing its rotation.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

14vl19

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

A

Answer to Question 2

B




LaDunn

  • Member
  • Posts: 526
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


mcabuhat

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

For a complete list of videos, visit our video library