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

Author Question: What distance method is used to determine the distance to the most distant galaxies when only a ... (Read 60 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
What distance method is used to determine the distance to the most distant galaxies when only a redshift is measured?
 
  a. Hubble's law
  b. supernova observations
  c. period-luminosity relationship of variable stars
  d. parallax

Question 2

What is hydrostatic equilibrium and how is it used to explain the internal stability of a star?
 
  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

Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

Hydrostatic equilibrium is the stable balance between weight and pressure. This shows that the inner layers of stars must be hotter because they must support more weight.


c0205847

  • Member
  • Posts: 531
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

carojassy25

  • Member
  • Posts: 299
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Irregular Galaxies Irregular Galaxies
How to determine if a quadratic equation has a maximum or minimum when given the roots How to determine if a quadratic equation has a maximum or minimum when given the roots
If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle
Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ... Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ...
LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ... LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ...
Offset Method Plot of Land with Offset Lines Offset Method Plot of Land with Offset Lines
Video: Coronary Heart Disease Animation

For a complete list of videos, visit our video library