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

Author Question: We expect neutron stars to spin rapidly because they conserve angular momentum. a. True b. False ... (Read 57 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
We expect neutron stars to spin rapidly because they conserve angular momentum.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Why can infrared telescopes operate from high flying aircraft and high mountain tops whereas X-ray telescopes must be placed in orbit?
 
  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

memslove

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

There are a few narrow atmospheric windows at short infrared wavelengths accessible from the ground, especially from high mountains. However, most infrared wavelengths are blocked, especially by water vapor absorption. Also, Earth's atmosphere itself glows in the far-infrared. So observations at very long IR wavelengths can be made only from telescopes carried to high altitudes by aircraft or balloons, or launched entirely out of the atmosphere on board spacecraft. It is very difficult to observe X-rays because Earth's atmosphere is opaque to X-rays. Therefore, X-ray telescopes must be placed in orbit.


jparksx

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

carlsona147

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

When introduced into a new area, rabbits can overpopulate rapidly, becoming a nuisance, as on this u When introduced into a new area, rabbits can overpopulate rapidly, becoming a nuisance, as on this u
TrUe....FaLsE TrUe....FaLsE
Rising and Setting of Stars at Middle North Latitudes Rising and Setting of Stars at Middle North Latitudes
Plotting the Ages of Stars Plotting the Ages of Stars
Stars and constellations Stars and constellations
The climate is changing rapidly, and greenhouse gases are the most likely cause. The climate is changing rapidly, and greenhouse gases are the most likely cause.
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library