Author Question: Cosmology is the study of the overall structure and evolution of A) the universe. B) stars. C) ... (Read 54 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
Cosmology is the study of the overall structure and evolution of
 
  A) the universe.
  B) stars.
  C) beauty.
  D) galaxies.

Question 2

Fire a cannonball from a cannon and it curves due to gravity. Shine a light from a flashlight and it
 
  A) curves per second the same as the cannonball.
  B) follows a straight-line path with no curvature at all.
  C) curves half as much as the cannonball.
  D) curves slightly, but not as much per second as the cannonball.

Question 3

In a 1-g gravitational field, in 1 s, a light beam will curve beneath a perfectly straight line by
 
  A) much less than 4.9 m.
  B) about 4.9 m.
  C) much more than 4.9 m.



potomatos

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

Answer: A

Answer to Question 2

Thank you soo much

Answer to Question 3

Answer: B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

There are more bacteria in your mouth than there are people in the world.

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.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

For a complete list of videos, visit our video library