Science & Mathematics - 13 January 2007

I'm curious as to why a person's throat hurts when you eat a mint or chew mint gum then drink something cold. Does anybody know? Thanks for answering.

2007-01-13 05:40:45 · 2 answers · asked by Gayle 4 in Biology

2007-01-13 05:39:50 · 17 answers · asked by Anonymous in Zoology

I was wondering how cold it is going to get in the South over the next few days. I live in southern Mississippi and was wondering if there is maybe a chance I can expect some wintry precip.

2007-01-13 05:37:47 · 2 answers · asked by Chloe_06 1 in Astronomy & Space

2007-01-13 05:37:04 · 1 answers · asked by zelda kid 2 in Botany

equation: y = 2 cos(3x - π) on the interval -2π ≤ x ≤ 2π

i know...
-the "2" is the amplitude, which means the graph starts at unit 2 on the graph.
-the "-π" means the graph would move to the right

but the rest, i'm unsure. thanks for the help.

2007-01-13 05:36:52 · 4 answers · asked by shih rips 6 in Mathematics

My data has generally been trending up for 128 days. The R-squared value for 128 days (where my independent variable, X, equals time in days) is .97. Several days ago, when the highest R-squared value was at 125 days, at 123 Degrees of Freedom my data was more than 3 Standard Errors below this 125 day Linear Regression Trendline (at or around its two-tailed 99% prediction interval). As you might suspect, my data violently regressed upward and is now back within 1 Standard Error of this 128 day LRT.

Here's where I'm having trouble. The time period with the LOWEST R-squared (0.00) is 27 days. Thus, there is no linear relationship for this time period. It's my understanding that when you have a very low R-squared value (where X=time), your data can be explained at least as well by a Simple Moving Average and Standard Deviations because the LRT and SMA are essentially horizontal lines. If I do that analysis, my data is currently 2.7 SD above the 27 day SMA (99% prediction level).

2007-01-13 05:36:09 · 2 answers · asked by Liberals_Celebrate_Abortions 1 in Mathematics

2007-01-13 05:36:00 · 7 answers · asked by Hardcore 3 in Mathematics

if a triangle has side legths 6 8 and 10, if a circle is drawn through its vertices , what is the diameter of the circle?
I see that the triangle is a pythagoren triple, but im having trouble explaining it

2007-01-13 05:34:59 · 5 answers · asked by brennen 1 in Mathematics

2007-01-13 05:31:09 · 20 answers · asked by SIMON S 1 in Mathematics

answers should be given before 15 of january

2007-01-13 05:29:55 · 7 answers · asked by pithu is cool 1 in Physics

Is it a myth, or is it really possible to make an explosive from the right combination of sugar and salt, with an electric charge? I heard the IRA know how to do this. If it possible does anyone know the right percentage of each compound?

2007-01-13 05:28:49 · 9 answers · asked by Anonymous in Chemistry

A woman has 5 Potatoes and six kids. She must feed them all the same ammount of potatoes, How can she do it ? but you can not give me the answer in fractions or decimels.

2007-01-13 05:25:21 · 24 answers · asked by Anonymous in Mathematics

will the states break apart, will everyone die

2007-01-13 05:23:45 · 5 answers · asked by Lauren C 1 in Earth Sciences & Geology

I need a simple example that uses all three of the Laws of Motion. I can't think of one. Thanks!

2007-01-13 05:23:35 · 6 answers · asked by Emily G 1 in Physics

This is trigonometry homework. I'd like to understand it for a test, so help would be appreciated. Thanks.

2007-01-13 05:23:27 · 5 answers · asked by yoink78 2 in Mathematics

The instructions for the problem say Graph the equation that much i can do but...it also says Find the constent variation and the slope of the direct variation model! Can you please help me?

2007-01-13 05:22:56 · 3 answers · asked by Courtney A 1 in Mathematics

what is the weather like in northern california

2007-01-13 05:18:23 · 1 answers · asked by ken s 6 in Weather

2007-01-13 05:17:17 · 8 answers · asked by JAMES 4 in Physics

2007-01-13 05:16:12 · 8 answers · asked by NUALA W 1 in Chemistry

2007-01-13 05:15:04 · 9 answers · asked by Kubricksmind 2 in Zoology

2007-01-13 05:14:25 · 7 answers · asked by Anonymous in Biology

this involves trig identities.
i know...
(sinθ)(sinθ)=sin^2θ

so does 2sin^2θ equal...
(2sin^2θ)(sin^2θ) ?

thanks for the help.

2007-01-13 05:14:02 · 5 answers · asked by shih rips 6 in Mathematics

2007-01-13 05:12:22 · 13 answers · asked by h_m_fire_eyes 1 in Physics

i was assigned to detect a sound origin in a closed room. i have to develop a device, which is able to detect the sound origin outside that closed room. the sound source (mono-tone) is from a normal sound generator, with a known frequency, may be is 1000hz, 10khz or 20khz. the wall is a thick masonry wall.

so, is it possible for me to use RF receiver to detect that sound origin outside the closed room? what type of antenna i have to use? what kind of problem i would face?

2007-01-13 05:11:02 · 3 answers · asked by eyeow 1 in Engineering

2007-01-13 05:10:41 · 8 answers · asked by alrightsazza59 1 in Earth Sciences & Geology

25
E (4k-5)

k=1

2007-01-13 05:08:25 · 1 answers · asked by SICK MY DUCK! 1 in Mathematics

i am 16yrs old. i want to be a scientist in the field of particle, nuclear and astro physics.

2007-01-13 05:06:48 · 12 answers · asked by PCMCPPE 1 in Physics

2007-01-13 05:04:34 · 5 answers · asked by ava r 1 in Mathematics

Automobile average cost in '92 was $19,249. Since then, the average increased at $1,136 yearly. What's the general term for the arithmetic sequence modeling automobile costs, where n=1 corresponds to 1992

2007-01-13 05:02:37 · 2 answers · asked by SICK MY DUCK! 1 in Mathematics

they used them in the episode where they had to find the needle in a haystack. i prity sure it starts with an "n"

does anybody know what kind they are/what they are called or where i can find some?

2007-01-13 05:01:53 · 2 answers · asked by LITTLE GREEN GOD 3 in Other - Science