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

Author Question: An emission nebula appears primarily ________ in color, due to ionized hydrogen. Fill in the ... (Read 75 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
on: Jul 27, 2018
An emission nebula appears primarily ________ in color, due to ionized hydrogen.
 
  Fill in the blank(s) with correct word

Question 2

In what manner have astronomers and physicists made tests to confirm that Einstein's theory of general relativity is actually a proper description of gravitational phenomena?
 
  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

Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

red

Answer to Question 2

A number of tests have confirmed Einstein's theory of general relativity. The first two, as mentioned in the text, are the deflection of starlight near the Sun during a total solar eclipse and the precision of the orbit of Mercury. In both cases, general relativity accurately predicted what was observed and could not be explained using classical physics. We have also observed gravitational redshift in the starlight given off by dense objects such as white dwarfs and neutron stars.


Chelseaamend

  • Member
  • Posts: 545
Reply 2 on: Jul 27, 2018
Excellent

hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

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

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?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Emission spectrum of iron Emission spectrum of iron
The Sun in false-color ultraviolet image The Sun in false-color ultraviolet image
Hydrogen Bonds رابطة هيدروجينية Hydrogen Bonds رابطة هيدروجينية
Hydrogen Bond with Peptide Hydrogen Bond with Peptide
What is the longest wavelength of light that can cause photoelectron emission fr What is the longest wavelength of light that can cause photoelectron emission fr
X-ray showing pneumonia. Fluid and blood cells fill the lungs X-ray showing pneumonia. Fluid and blood cells fill the lungs
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library