Author Question: Light from an object near the event horizon received by a distant observer is ________. Fill in ... (Read 30 times)

karen

  • Hero Member
  • *****
  • Posts: 537
Light from an object near the event horizon received by a distant observer is ________.
 
  Fill in the blank(s) with correct word

Question 2

How do we know the total mass of the Milky Way Galaxy that is contained within the Sun's orbital path?
 
  A) by counting the number of stars visible in this region of the galaxy
  B) by estimating the amount of gas and dust in between the stars
  C) by using the law of conservation of angular momentum to calculate the orbital speeds of nearby stars
  D) by applying Newton's version of Kepler's third law to the orbits of the Sun or other nearby stars around the center of the Galaxy



skipfourms123

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

redshifted

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

For a complete list of videos, visit our video library