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 111 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?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Object and Word Recognition After Vertices Have Been Eliminated (Adapted from Szwed, M., Cohen, L, Q Object and Word Recognition After Vertices Have Been Eliminated (Adapted from Szwed, M., Cohen, L, Q
Spot the hidden object Spot the hidden object
Endangerment sites of the head and face. Use only light to moderate pressure on head and face. Endangerment sites of the head and face. Use only light to moderate pressure on head and face.
Absorption spectra and light energy Absorption spectra and light energy
A container in the shape of a right circular cylinder with no top has surface area square feet. A container in the shape of a right circular cylinder with no top has surface area square feet.
A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ... A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ...
Video: ADH and the arterioles, kidneys, sweat glands and the Atrial natriuretic peptide (ANP)

For a complete list of videos, visit our video library