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

Author Question: The mass of a galaxy can be determined from its _______________ curve. Fill in the blank(s) with ... (Read 57 times)

KimWrice

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
The mass of a galaxy can be determined from its _______________ curve.
 
  Fill in the blank(s) with correct word

Question 2

Explain the difference between cosmic rays and electromagnetic radiation, and how cosmic particles are captured.
 
  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

nmyers

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

rotation

Answer to Question 2

Unlike electromagnetic radiation, which is made up of photons, cosmic rays are subatomic particles such as electrons and protons traveling at nearly the speed of light, arriving from mostly unknown cosmic sources.

Almost no cosmic rays reach the ground, but some of them smash into gas atoms in Earth's upper atmosphere, and fragments of those atoms shower down to the ground. Huge detectors must be built to catch and count them. For example, detectors for some kinds of cosmic rays have been carried on balloons or launched into orbit, while others have been built deep underground where layers of rock filter out all but the most penetrating particles.


KimWrice

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Wow, this really help

ttt030911

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

A sigmoid (cooperative) binding curve A sigmoid (cooperative) binding curve
Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa
Mass Loss by a Supermassive Star Mass Loss by a Supermassive Star
Linear dose-response curve Linear dose-response curve
Fornax Galaxy Cluster Fornax Galaxy Cluster
Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

For a complete list of videos, visit our video library