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

Author Question: Only during the last decade of the twentieth century did the Arctic began to experience an ozone ... (Read 53 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
Only during the last decade of the twentieth century did the Arctic began to experience an ozone hole and formation of polar stratospheric clouds, and the hole expanded in a regular way after it appeared.
 
  What does this indicate about Arctic stratospheric temperatures during this period? Explain.

Question 2

Binding energy is roughly constant for all higher-A nuclei.
 
  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

prumorgan

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

As a result of detailed study of the mechanisms of ozone depletion, we know that
the temperature has a lot to do with what happens. The temperature near the poles is very
low. That is really all that we can know based on this particular observation. We can know
that because we know that low temperatures are essential for the ozone-depleting reactions
to occur. But other conditions must be met as well.
Does the expanded ozone hole mean that the temperature must have gotten lower? Not
necessarily. The concentration of ozone-depleting gases may have changed.
Is the temperature on this basis then known not to be lower than in previous times? This is
not knowable on the basis of this observation alone; it may or may not have happened (see
the preceding paragraph).
Can we be sure the concentration of ozone-depleting gases has changed? Certainly not on
the basis of this observation alone; the temperature or some other condition could have
changed. This is the reason that we can conclude only that the temperature must have been
low enough for the requisite chemical reactions to occur.

Answer to Question 2

The average binding energy per nucleon is roughly constant for 60 < A < 140, but
not the binding energy. The binding energy of nuclei grows roughly as A 1/3.




haleyc112

  • Member
  • Posts: 600
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)


Hdosisshsbshs

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

For a complete list of videos, visit our video library