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by hearthstone224
March 2nd, 2017, 5:55 am
Forum: 2017 Study Events
Topic: Remote Sensing C
Replies: 119
Views: 17813

Re: Remote Sensing C

Hey guys, I got a question for you all... There is an atmospheric window that permits transmission of EM energy in the following range: a) 0.001 to 0.01 micrometers b) 0.01 to 0.1 micrometers c) 5 to 8 micrometers d) 8 to 14 micrometers e) 100 to 800 micrometers. Apparently the answer is C, however ...
by hearthstone224
March 2nd, 2017, 5:50 am
Forum: 2017 Question Marathons
Topic: Remote Sensing C
Replies: 59
Views: 10281

Re: Remote Sensing C

Ah, well I never knew the constant's units. Thanks. So to confirm- This would be in the infared range. Do I get next question? If so, I'll just let someone else do it (If that is allowed. I can't think of one rn). It would be in the infrared (LWIR). I'll ask the next question. What temperature must...
by hearthstone224
March 1st, 2017, 7:35 pm
Forum: 2017 Question Marathons
Topic: Remote Sensing C
Replies: 59
Views: 10281

Re: Remote Sensing C

Ah, well I never knew the constant's units. Thanks. So to confirm- This would be in the infared range.

Do I get next question? If so, I'll just let someone else do it (If that is allowed. I can't think of one rn).
by hearthstone224
March 1st, 2017, 9:41 am
Forum: 2017 Question Marathons
Topic: Remote Sensing C
Replies: 59
Views: 10281

Re: Remote Sensing C

What is the peak wavelength of a blackbody at temperature 310 K?
You can use Wein's law so you can do:

0.29/310K = 0.000935483871 nm. That's in the gamma ray range I think.
by hearthstone224
March 1st, 2017, 9:05 am
Forum: 2017 Question Marathons
Topic: Remote Sensing C
Replies: 59
Views: 10281

Re: Remote Sensing C

Sorry about that guys. Correct, your turn Xuax.
by hearthstone224
March 1st, 2017, 7:21 am
Forum: 2017 Question Marathons
Topic: Remote Sensing C
Replies: 59
Views: 10281

Re: Remote Sensing C

If I get it right, here's my question: (This is actually from an invitational) The Hubble Telescope has a diameter of 2.4 meters and orbits at a height above earth of 559 km. If it were used to observe the Earth, instead of space, what would be its theoretical limit of resolution in the visible spec...
by hearthstone224
March 1st, 2017, 7:19 am
Forum: 2017 Question Marathons
Topic: Remote Sensing C
Replies: 59
Views: 10281

Re: Remote Sensing C

Okay, What is Aerosol Forcing? I didn't exactly find Aerosol Forcing's definition, but I did find Radiative forcing. Radiative forcing is the difference between the incoming sunlight and the outgoing sunlight. A positive forcing number is warming the system, a negative forcing number is cooling it....
by hearthstone224
February 21st, 2017, 5:24 pm
Forum: 2017 Study Events
Topic: Remote Sensing C
Replies: 119
Views: 17813

Re: Remote Sensing C

Oh, ok. Interesting info there, since I feel like its so odd to have the more important competition be of lower quality. Either way, what questions have you all been seeing on the test? I feel like a Regional wouldn't copy a test off the wiki, would it? Also I feel as though this year is really A-tr...
by hearthstone224
February 21st, 2017, 9:13 am
Forum: 2017 Lab Events
Topic: Materials Science C
Replies: 61
Views: 23437

Re: Materials Science C

The regional test I took this past Saturday was surprisingly decent. Ended up placing 2nd The event was 25 min lab and then 25 min test written by an inorganic chemist. The test portion was focused solely on chemistry and included basics questions as classifying elements and then bonding relationsh...
by hearthstone224
February 21st, 2017, 9:11 am
Forum: 2017 Study Events
Topic: Remote Sensing C
Replies: 119
Views: 17813

Re: Remote Sensing C

Wow. I would think opposite since Regionals are what really matters, right? Invitationals kind of are just there for practice.

Anyways, nice to know. I'm going through the Pennsylvania State Test 2013, since that was the test which the directions were straight out of.

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