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

Author Question: How did Hubble use the cosmological redshift to determine distance? What will be an ideal ... (Read 61 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Jul 27, 2018
How did Hubble use the cosmological redshift to determine distance?
 
  What will be an ideal response?

Question 2

The signature of a planet is largest in radial velocity measurements when the planet and star are lined up along the line of sight to the telescope.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ilianabrrr

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

The redshift is caused by the Doppler effect as a result of the galaxy's velocity. Hubble found that when known galactic distances (determined with a standard candle) were plotted with the recessional velocity, all the data fell on a straight line. The slope of this line is Hubble's constant. This allowed him to use a measured redshift (or calculated velocity) to read the distance off the plot, or to use the equation to calculate the distance.

Answer to Question 2

TRUE


penza

  • Hero Member
  • *****
  • Posts: 1,022
Reply #2 on: Jul 27, 2018
TY


ilianabrrr

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Approach used to determine the evolutionary relationships among many animal species using molecular Approach used to determine the evolutionary relationships among many animal species using molecular
Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro
Piaget was one of the first to go beyond observable behavior in an attempt to determine how infants ... Piaget was one of the first to go beyond observable behavior in an attempt to determine how infants ...
Type of Interactions, Model, Examples and Dependence of Energy on Distance Type of Interactions, Model, Examples and Dependence of Energy on Distance
Determine the enthalpy change of this reaction Determine the enthalpy change of this reaction
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ... A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
Video: How proteins function? How do proteins work?

For a complete list of videos, visit our video library