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

Author Question: The current theories of gravity are ________ because they do not incorporate a proper description of ... (Read 66 times)

rl

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
The current theories of gravity are ________ because they do not incorporate a proper description of matter on the smallest scale.
 
  Fill in the blank(s) with correct word

Question 2

Briefly explain how dark matter affects the expansion rate of the universe and the significance of the term critical density in the absence of any mysterious repulsive force.
 
  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

perkiness

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 27, 2018
Answer to Question 1

incomplete

Answer to Question 2

Dark matter slows the expansion of the universe, because gravity is an attractive force. In the absence of any mysterious repulsive force (or dark energy), a universe with the average mass density equal to the critical density is the densest universe that will expand forever. A denser universe will eventually reverse its expansion and contract; a less dense universe will expand forever.


rl

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Gracias!

Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio
Drug Classification and Description of Use Drug Classification and Description of Use
Vaginal medication administration: (b) proper insertion of the NuvaRing. Vaginal medication administration: (b) proper insertion of the NuvaRing.
A current model for protein secretion by prokaryotes A current model for protein secretion by prokaryotes
Gulf Stream/North Atlantic Current Gulf Stream/North Atlantic Current
A current-carrying wire is placed in a uniform magnetic field, as shown below. A current-carrying wire is placed in a uniform magnetic field, as shown below.
Video: Coronary Heart Disease

For a complete list of videos, visit our video library