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 37 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

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

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?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Units of Radiation Measurement Units of Radiation Measurement
How to find the domain and range of natural logarithmic functions (Part 1) How to find the domain and range of natural logarithmic functions (Part 1)
How to factor and solve quadratic trinomials (Part 1) How to factor and solve quadratic trinomials (Part 1)
Earth’s Biomes "الأرض الحيوية" Earth’s Biomes "الأرض الحيوية"
Breakup of the Larsen B Ice Shelf (part 1) Breakup of the Larsen B Ice Shelf (part 1)
Orbital Motion of Earth and Other Planets Orbital Motion of Earth and Other Planets
Video: Hormonal regulation of pregnancy - weeks 2 through 38

For a complete list of videos, visit our video library