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 97 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
Thanks for the timely response, appreciate it

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

A Circumstellar Disk of Matter A Circumstellar Disk of Matter
Spiral Galaxies (Nearly Face-on Views) Spiral Galaxies (Nearly Face-on Views)
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 ...
Early geologists discovered evidence of past glaciations in U-shaped valleys Early geologists discovered evidence of past glaciations in U-shaped valleys
The origin and spread of modern H. sapiens, reconstructed from genetic and fossil evidence. The origin and spread of modern H. sapiens, reconstructed from genetic and fossil evidence.
Experimentally acquired evidence for gene annotation Experimentally acquired evidence for gene annotation
Video: Polysaccharides

For a complete list of videos, visit our video library