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Science & Mathematics - 9 October 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

When I look at the Northern Lights with the naked eye, I see grey or white with some tints of green. Now when looking at photos of the northern lights I see brilliant greens and purples that seem to the the prevailing colors. I mentioned this to a co worker who said that the picture on the screen of a web site of northern lights was what he saw when he looked at the northern lights. My question is why don't I see those colors when I look at them, do I have some sort of color blindness? As far as I know I don't have any form of color blindness.What do you think. And by the way, what do you see when you look at them. And FYI, I live in northern Minnesota, so the lights here are bright and often!

2007-10-09 15:08:32 · 8 answers · asked by gus_zalenski 5 in Astronomy & Space

Where do freckles come from?
From the sun? Or is it genetic?
Are people born with them? If so, did some relative way back get freckles? Then it went into the DNA?

2007-10-09 15:08:23 · 4 answers · asked by Philip Augustus 3 in Biology

Find a vector equation and parametric equations for the line.

The line through the point (1,0,6) and perpendicular to the plane x+3y+z=5.

this is only number 5 on my homework, I am screwed

2007-10-09 15:07:56 · 2 answers · asked by nkarasch 2 in Mathematics

what is the answer, i have two different set of answers.

2007-10-09 15:06:26 · 10 answers · asked by toystoryx 1 in Mathematics

Your solution should describe how you know that you have found all of the solutions.

2007-10-09 15:05:14 · 1 answers · asked by Anonymous in Mathematics

2007-10-09 15:03:07 · 5 answers · asked by carol n 1 in Biology

2007-10-09 15:00:08 · 7 answers · asked by You Know You Love Me <3 3 in Earth Sciences & Geology

a guy wire runs from the top of a telephone pole 56 ft high to the ground and pulls on the pole with a force of 290 lbs what is the horizontal pull on the top of the pole?explain!!!!!!

2007-10-09 14:59:29 · 1 answers · asked by Vanessa C 2 in Physics

division in factoring factor the polnomial. Help me I can't do these division for the life of me
x^3+2x^2-5x-6,x+3

2007-10-09 14:58:57 · 4 answers · asked by mormar 1 in Mathematics

are we due for one this year?

2007-10-09 14:55:56 · 1 answers · asked by Anonymous in Weather

how to work out this problem by zero factor property
2w(4w+1)=1

2007-10-09 14:52:41 · 2 answers · asked by mormar 1 in Mathematics

I don't know how to do this. Could you please do it for me? Hey ten points right? :)

2007-10-09 14:52:15 · 2 answers · asked by Please H 1 in Mathematics

please provide both the answers will be very help full

2007-10-09 14:51:44 · 2 answers · asked by the champ 1 in Chemistry

2007-10-09 14:50:57 · 7 answers · asked by Allen T 1 in Mathematics

cars rust when a chemical change turns shiny iron into dull brownish-red dust!

2007-10-09 14:47:59 · 2 answers · asked by Anonymous in Chemistry

I want to know exactly how we would identify the reactants or products in a balanced equation and determine their phases.

2007-10-09 14:45:25 · 3 answers · asked by lisazhang112004 1 in Chemistry

i am applying for a position of a waterwaste utility mantenance worker and i need to know about the job

2007-10-09 14:45:18 · 3 answers · asked by kuyang 1 in Engineering

2007-10-09 14:44:16 · 2 answers · asked by Anonymous in Zoology

interval between the perception of a signal to stop and the application of the brakes.) If an automobile can slow down with an acceleration of 12.0 ft/s^2, compute the total distance covered in coming to a stop after a signal is observed (a) from an initial velocity of 15.0mi/h (in a school zone) and (b) from an initial velocity of 55.0 mi/h.

I was confused about this one. is the problem saying that the the final velocity will be 0 or do I have to figure this out. anyone please help me figure out how to solve this, I would really appreciate it a lot !

2007-10-09 14:44:10 · 2 answers · asked by Anonymous in Physics

Write result in slope-intercept form.

2007-10-09 14:43:34 · 2 answers · asked by Mr. Al 2 in Mathematics

2007-10-09 14:42:24 · 10 answers · asked by Anonymous in Mathematics

2007-10-09 14:42:11 · 2 answers · asked by Anonymous in Physics

We were talking about the Chicago marahon at school, and my science teacher says that the misting stations located throughout the marathon are there so that your body does not need to produce as much sweat and can take water directly through your pores. But my mom who is a doctor says that can't happen. Who is right?

2007-10-09 14:35:48 · 5 answers · asked by Anonymous in Biology

I know, they sleep in nests, but i NEVER EVER see nests ANYWHERE. There's a billion seabulls and birds and geeses all around, and I have absolutely no idea where they could be, and if they ARE in nests, then where are the nests? Somebody straighten this out for me please, thanks.

2007-10-09 14:32:27 · 3 answers · asked by JJ 1 in Zoology

2007-10-09 14:28:50 · 18 answers · asked by norma9198@sbcglobal.net 2 in Earth Sciences & Geology

where in your home can you find it?

2007-10-09 14:28:41 · 5 answers · asked by Anonymous in Chemistry

A rock falls from the top of a mountain and it's speed is 70.56m/s and the acceleration of gravity is 9.8m/s^2. How can I find the height of the mountain?

2007-10-09 14:24:48 · 3 answers · asked by <3DA<3 1 in Physics

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