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 119 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?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

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?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

A pharmacist can explain to a patient why medication may look different and ensure the correct ... A pharmacist can explain to a patient why medication may look different and ensure the correct ...
Mechanisms to Explain the Effects of Massage Mechanisms to Explain the Effects of Massage
How to determine if a table of values represents a linear or quadratic relationship How to determine if a table of values represents a linear or quadratic relationship
How to sketch a quadratic equation that is in standard form (Question 2) How to sketch a quadratic equation that is in standard form (Question 2)
How to fully analyze the standard and factored form of a quadratic equation (Question 1) How to fully analyze the standard and factored form of a quadratic equation (Question 1)
Determine the exact value of each trig ratio. Determine the exact value of each trig ratio.
Video: Introduction to Human Immunodeficiency Virus (HIV)

For a complete list of videos, visit our video library