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 123 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?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Parts of the Hand Used in Palpation; Palmar Surface Parts of the Hand Used in Palpation; Palmar Surface
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
black and white face black and white face
black swallower black swallower
Ben Jones, Black Face and Arm Unit. Ben Jones, Black Face and Arm Unit.
Elephant herd drinking at water hole. Botswana Elephant herd drinking at water hole. Botswana
Video: Blood Flow through the Human Heart

For a complete list of videos, visit our video library