« previous next »

Author Question: What problem is adaptive optics designed to correct? A) the opacity of the Earth's atmosphere B) ... (Read 14 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Artist's conception of the New Horizons spacecraft passing over Pluto, showing its tenuous atmo Artist's conception of the New Horizons spacecraft passing over Pluto, showing its tenuous atmo
Butterfly systems designed for safety and ease of use. (A) A safety shield slides down over the ... Butterfly systems designed for safety and ease of use. (A) A safety shield slides down over the ...
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Problem Problem
Physics - Exercise Problem Physics - Exercise Problem
Problem Problem
Video: Blood Pressure Measurement

For a complete list of videos, visit our video library