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

Author Question: A filtergram is a photograph of the Sun's surface made a. in a band of wavelengths in the ... (Read 75 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
A filtergram is a photograph of the Sun's surface made
 
  a. in a band of wavelengths in the infrared.
  b. in a band of wavelengths in the ultraviolet.
  c. using the Zeeman effect.
  d. with only those photons emitted in a specific spectral line.
  e. none of the others.

Question 2

The purpose of using epicycles and deferents to explain the motion of the planets in the night sky was to account for
 
  a. prograde motion.
  b. Mercury's and Venus's limited angular distance from the Sun.
  c. retrograde motion.
  d. non-uniform speed of the planets in their orbits.
  e. precession of the equinoxes.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

s.meritte

  • Sr. Member
  • ****
  • Posts: 306
Answer to Question 1

d

Answer to Question 2

c




madam-professor

  • Member
  • Posts: 584
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

For a complete list of videos, visit our video library