This topic contains a solution. Click here to go to the answer

Author Question: When the Martian axis tilt is large, the Martian poles A) expand and remain permanently frozen, ... (Read 38 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
When the Martian axis tilt is large, the Martian poles
 
  A) expand and remain permanently frozen, thinning the atmosphere
  B) contract and partially vaporize, thickening the atmosphere
  C) extend over the entire surface of the planet
  D) completely disappear

Question 2

What are gravitational waves? Have they ever been detected?
 
  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

voltaire123

  • Sr. Member
  • ****
  • Posts: 301
Answer to Question 1

B

Answer to Question 2

Gravitational waves are ripples of spacetime caused by the motion of massive objects (the more massive the object, the greater the ripples). They travel at the speed of light but are so weak that they have not yet been detected. New telescopes are being built, however, to search for them. The effect of gravitational waves has been seen in the orbital decay of a very close binary neutron star system: the gravitational waves carry energy away from the binary and the two neutron stars move closer and closer together, speeding up their orbits measurably. Based on estimates of the number of binary neutron star systems, scientists expect to detect 10 or more events per year with Advanced LIGO.





 

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

For a complete list of videos, visit our video library