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

Author Question: A black hole is _____. a. an object so dense that light cannot escape its surface b. a neutron ... (Read 124 times)

nautica902

  • Hero Member
  • *****
  • Posts: 591
on: Jul 27, 2018
A black hole is _____.
 
  a. an object so dense that light cannot escape its surface
  b. a neutron star that has exceeded the Chandrasekhar limit
  c. a theoretical model that has never been observed
 d. an observed object that is not well understood
  e. the result of a neutron star merger

Question 2

Ptolemy tried to describe the motion of the planets by devising a small circle, called a(n) ____, which rotated around the edge of a larger circle.
 
  a. epicycle
  b. foci
 c. deferent
  d. equant
 e. sphere


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

a


nautica902

  • Hero Member
  • *****
  • Posts: 591
Reply #2 on: Jul 27, 2018
Thanks


livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Excitation of isolated chlorophyll by light. Excitation of isolated chlorophyll by light.
Development of the light microscope Development of the light microscope
Black and White Out-Migration from Virginia and North and South Carolina, 1870–1940 (in thousands) Black and White Out-Migration from Virginia and North and South Carolina, 1870–1940 (in thousands)
Rashid Johnson, Souls of Black Folk. Rashid Johnson, Souls of Black Folk.
Use full palms to apply light sliding strokes from foot to hip. This connects and finishes massage ... Use full palms to apply light sliding strokes from foot to hip. This connects and finishes massage ...
Cell surface recognition factors Cell surface recognition factors
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

For a complete list of videos, visit our video library