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

Author Question: What is meant by a cosmological distance? What will be an ideal ... (Read 14 times)

Garrulous

  • Hero Member
  • *****
  • Posts: 686
on: Jul 27, 2018
What is meant by a cosmological distance?
 
  What will be an ideal response?

Question 2

What is true of a blackbody?
 
  A) If its temperature doubled, the peak in its radiation curve would be doubled in wavelength.
  B) Its energy peaks at the wavelength determined by its temperature.
  C) It has a complete absence of thermal energy.
  D) Its energy is not a continuum.
  E) It appears black to us, regardless of its temperature.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brbarasa

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jul 27, 2018
Answer to Question 1

A distance on the scale of the universe. An object at this distance will show an extremely large redshift.

Answer to Question 2

B


Garrulous

  • Member
  • Posts: 686
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Spinnbarkeit is the ability of cervical mucus to stretch a distance before breaking. Spinnbarkeit is the ability of cervical mucus to stretch a distance before breaking.
Examples of cell-to-cell communication based on the distance between cells Examples of cell-to-cell communication based on the distance between cells
A herd of barren-ground caribou at the Thelon River. This subspecies is a long-distance migrant A herd of barren-ground caribou at the Thelon River. This subspecies is a long-distance migrant
Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The
Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: Blood Pressure Measurement

For a complete list of videos, visit our video library