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 46 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
Gracias!

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Always use the viscosity of oil as specified on the oil fill cap. Always use the viscosity of oil as specified on the oil fill cap.
How to create a sine equation when the curve is given How to create a sine equation when the curve is given
Change in Bone Mass over Time In your early years, more bone mass is added than lost in your body Change in Bone Mass over Time In your early years, more bone mass is added than lost in your body
Bacteria growth curve Bacteria growth curve
Air-Mass Source Regions for North America Air-Mass Source Regions for North America
Mass spectrometry for identifying an unknown protein isolated from a 2D gel Mass spectrometry for identifying an unknown protein isolated from a 2D gel
Video: Role of transport in a cell

For a complete list of videos, visit our video library