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

Author Question: Explain what a standard candle is and how it could be used to determine a galaxy's distance. What ... (Read 166 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
on: Jul 27, 2018
Explain what a standard candle is and how it could be used to determine a galaxy's distance.
 
  What will be an ideal response?

Question 2

The ________ tides have a large change from high to low, near new and full moons.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 27, 2018
Answer to Question 1

A standard candle is an object with a well-known luminosity, such as a Type I supernova. If we see a standard candle in a distant galaxy, we can measure its apparent brightness and use the inverse-square law to determine its distance.

Answer to Question 2

spring


tuffie

  • Hero Member
  • *****
  • Posts: 534
Reply #2 on: Jul 27, 2018
Thanks


leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

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?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Electron Shells Determine the Reactivity of Atoms. Electron Shells Determine the Reactivity of Atoms.
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Cumulative Standard Normal Distribution Cumulative Standard Normal Distribution
The inverse-square law and its effects. Doubling your distance away from a radioactive material ... The inverse-square law and its effects. Doubling your distance away from a radioactive material ...
Determine the exact value of each trig ratio. Determine the exact value of each trig ratio.
Determine the nominal annual rate of interest of the following ordinary general annuity. Determine the nominal annual rate of interest of the following ordinary general annuity.
Video: Fermentation pathways

For a complete list of videos, visit our video library