Author Question: Cosmology is the study of the overall structure and evolution of A) the universe. B) stars. C) ... (Read 15 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?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

For a complete list of videos, visit our video library