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

Author Question: Which of the following would not be considered evidence for dark matter in clusters of galaxies? ... (Read 91 times)

magmichele12

  • Hero Member
  • *****
  • Posts: 559
on: Jul 27, 2018
Which of the following would not be considered evidence for dark matter in clusters of galaxies?
 
  A) the total amount of stars
  B) the temperature of the intergalactic gas
  C) the velocities and radii of galaxy orbits around the center of mass in the cluster
  D) the curvature of gravitationally-lensed galaxies

Question 2

The choices below describe four hypothetical planets. Which one would you expect to have the most features of erosion? (Assume the planets orbit a star just like the Sun and that they are all the same age as the planets in our solar system.)
 
  A) Size: same as Venus. Distance from Sun: same as Mars. Rotation rate: once every 25 hours.
  B) Size: same as the Moon. Distance from Sun: same as Mars. Rotation rate: once every 10 days.
  C) Size: twice as big as Earth. Distance from Sun: same as Mercury. Rotation rate: once every 6 months.
  D) Size: same as Mars. Distance from Sun: same as Earth. Rotation rate: once every 18 hours.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bitingbit

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


magmichele12

  • Member
  • Posts: 559
Reply 2 on: Jul 27, 2018
Gracias!

ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

White matter White matter
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Common skin signs are often evidence of an illness or disorder. A pustule is a small, elevated, ... Common skin signs are often evidence of an illness or disorder. A pustule is a small, elevated, ...
Common skin signs are often evidence of an illness or disorder. A fissure is a crack-like sore or ... Common skin signs are often evidence of an illness or disorder. A fissure is a crack-like sore or ...
Cannons - Footsteps In The Dark (The Isley Brothers Cover) Cannons - Footsteps In The Dark (The Isley Brothers Cover)
Video: Neuron Type Animation

For a complete list of videos, visit our video library