This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Above about 80 km, the Sun's radiation ionizes the gases. What is this part of Earth's atmosphere ... (Read 47 times)

AEWBW

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
Above about 80 km, the Sun's radiation ionizes the gases. What is this part of Earth's atmosphere called?
 
  A) The troposphere
  B) The stratosphere
  C) The mesosphere
  D) The ionosphere
  E) The magnetosphere

Question 2

Compare how doubling the diameter of a mirror will affect both resolution and light grasp.
 
  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

wtf444

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

The resolution would now be twice as sharp, but the increase in surface area, with the squaring for the area, would now detect stars four times fainter than before.


AEWBW

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Changes in Earth's atmospheric carbon dioxide levels over geological time. Changes in Earth's atmospheric carbon dioxide levels over geological time.
Adaptive radiation in stickleback fish. Adaptive radiation in stickleback fish.
Titan's dense atmosphere shrouds the moon beneath a tan haze in this image. Titan's dense atmosphere shrouds the moon beneath a tan haze in this image.
Map These Genes (Part 4) Map These Genes (Part 4)
Solar EM Radiation Penetration into Earth's Atmosphere Solar EM Radiation Penetration into Earth's Atmosphere
Distribution of Earth's Water Distribution of Earth's Water
Video: DNA Replication Factory and Protein

For a complete list of videos, visit our video library