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Science & Mathematics - 29 July 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

http://www.flickr.com/photos/10449202@N04/944341489/

and if it is one how can I get rid of them???
Any good product???
thanks

2007-07-29 13:25:46 · 12 answers · asked by Vegetarian Princess 3 in Zoology

After midnight the other night, I heard a coyotee baying at the moon. I went to the window to check it out, and no doubt about it, it was a coyotee howling with the luminous moon in the sky behind him. Why exactly to dogs, wolves, and coyotees do this? What is the relationship?

2007-07-29 13:23:47 · 5 answers · asked by MeowMeow 3 in Zoology

2007-07-29 13:22:21 · 3 answers · asked by TERRELL E DAVIS E 1 in Medicine

Or is it a "regular" topaz treated with something to get all those different colors?

2007-07-29 13:20:21 · 3 answers · asked by A. M 3 in Earth Sciences & Geology

How come we speak English because of polarized light?

2007-07-29 13:14:45 · 5 answers · asked by Anonymous in Physics

Given a polygon with 5 sides, determine the following:
part a) The sum of the measures of the interior angles.
part b) The sum of the measures of the exterior angles

and why

2007-07-29 13:12:34 · 4 answers · asked by zerokun4 1 in Mathematics

What is the total velocity of the plane
formula n xplain

2007-07-29 13:12:06 · 3 answers · asked by xplicit 2 in Physics

With a possible example, thank you.

2007-07-29 13:08:06 · 3 answers · asked by Anonymous in Physics

ABM mushrooms have highest level of beta glucan.
Where can I get some sawdust plug spawns of ABM? Which tree logs are best to grow? Any links. Thanks.

2007-07-29 13:03:54 · 1 answers · asked by toodd 4 in Botany

If $1,500 is deposited each and every year in an account yielding 6% interest, compounded annually, how much money will have been saved after 10 years?

2007-07-29 12:57:51 · 3 answers · asked by Patricia F 1 in Mathematics

Dont put a stupid name. Please.

2007-07-29 12:57:22 · 5 answers · asked by Dancing girl.[: 2 in Geography

solve algrbraically:

x3/2=27

2007-07-29 12:56:10 · 13 answers · asked by quepid622 1 in Mathematics

Solve the compound inequality:
2x - 3 > 5 AND 5x + 2 < 32.
Draw the number line.

2007-07-29 12:53:05 · 4 answers · asked by Patricia F 1 in Mathematics

2007-07-29 12:50:14 · 8 answers · asked by toodd 4 in Weather

Why don't the sighted ufo's land?Why doesn't alien life want to be known?Do you think they are scared of us?Why?

2007-07-29 12:43:24 · 13 answers · asked by Life goes on... 6 in Paranormal Phenomena

People have been on this earth for thousands of years. Does it seem odd to you that technology has just evolved to where it is now since about 1949-1950 when the so called Roswell, New Mexoco UFO crashed?

2007-07-29 12:32:11 · 13 answers · asked by Introuble 4 in Astronomy & Space

2007-07-29 12:28:40 · 2 answers · asked by Cole Marie' 3 in Astronomy & Space

If x is a positive integer less than 50, for how many values of x is
x^2 / √ x

an integer?

2007-07-29 12:27:02 · 2 answers · asked by Anonymous in Mathematics

Two straight roads intersect at right angles. Car A, moving along one of the roads, approaches
the intersection at 25km/h and car B, moving on the other road, approaches the intersection
at 30km/h. At what rate is the distance between the two cars changing when A is 0.5km from
the intersection and B is 1.2 km from the intersection?

I have formed two equations:
x= 0.5 +25t and y= 1.2 + 30t
- im stuck here and I dont know how to continue.

Thanks in advance!

2007-07-29 12:20:59 · 3 answers · asked by Anonymous in Mathematics

Im am trying to find the limit of the function (cos x - 1) / sin x^2 as the limit approaches 0.

If you plug in 0 you get 0/0 meaning l'hospitals rule applies.

So I take the derivative of the top and bottom seperatly

I get -sin x / 2x cos x^2, which still gives me a 0 for an answer,

even if I take more derivatives I will keep getting the same answer...However I guessed in my head the answer would be -1/2, but I cant show it

Any ideas?

2007-07-29 12:18:59 · 3 answers · asked by bid 1 in Mathematics

How do I find the mean value of the function 2X^2 - 5X +3 on the interval [1,2]?

And how do i find the area bounded by f(x)= -x^2 +4x -21 and g(x)= sqrt2x? 3.5 > x > 0 (3.5 is greater than or equal to x which is greater than or equal to zero)

2007-07-29 12:06:15 · 3 answers · asked by LaLa 1 in Mathematics

rdc=radical sign exp=exponent a. (10rdc3)exp2 b. 3rdc17 x 3rdc17 c. rdc 20exp2 x 20exp2

2007-07-29 12:01:24 · 2 answers · asked by Anonymous in Mathematics

hi

2007-07-29 11:54:34 · 5 answers · asked by nurges g 1 in Mathematics

- 6 = - 6 (an assumption)

can be written as

4 -10 = 9 -15

4 -10 + 25/4 = 9 -15 + 25/4 (adding 25/4 on both sides)

(2 - 5/2)^2 = (3 - 5/2)^2 (by opening it we get the same according to (a - b)^2=a^2 + b^2 - 2ab)

2 - 5/2 = 3 - 5/2 (taking 1/2 power on both sides)

2 = 3

how is tht possible ......... isnt date amazing or i m wrong some where ?

2007-07-29 11:52:04 · 4 answers · asked by its me 2 in Mathematics

How come at night, when one looks up at the stars, the stars don't differ in position from the night before or the night before that?

2007-07-29 11:47:09 · 10 answers · asked by symperl 2 in Astronomy & Space

I found this in my entry way closet. I live in Portland, Oregon, if my location helps you to identify it. But it looks exotic to me...Can anyone help me out?

Go to this link for a picture
http://s51.photobucket.com/albums/f385/bizsmoo/?action=view¤t=bettle001.jpg

2007-07-29 11:44:45 · 5 answers · asked by powers_slr 1 in Zoology

2007-07-29 11:44:36 · 11 answers · asked by shoppinggirls3 1 in Mathematics

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