Author Question: Cosmology is the study of the overall structure and evolution of A) the universe. B) stars. C) ... (Read 23 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?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

For a complete list of videos, visit our video library