Author Question: What problem is adaptive optics designed to correct? A) the opacity of the Earth's atmosphere B) ... (Read 46 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
What problem is adaptive optics designed to correct?
 
  A) the opacity of the Earth's atmosphere
  B) defects in the optical figuring, such as with the adaptive optics on HST
  C) slight tracking errors in trying to compensate for our unsteady rotation
  D) the effects of atmospheric turbulence
  E) the absorption of ultraviolet by the ozone layer

Question 2

The size and shape of a planet's orbit can be determined by
 
  A) the Doppler technique.
  B) transit observations.
  C) spectral measurements.
  D) knowing the planet's mass by any technique and applying Newton's version of Kepler's third law.
  E) gravitational microlensing.



CAPTAINAMERICA

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

D

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

For a complete list of videos, visit our video library