Science & Mathematics - 19 November 2007

use composition to prove that f(x)=e^x+2 and g(x)= -2+LnX are inverse functions

2007-11-19 07:34:29 · 3 answers · asked by * B 1 in Mathematics

a) x[squared]+5x+6
b) x[squared]-4x-12
c) x[squared]-7x+10

Thanks in advance..

2007-11-19 07:34:23 · 8 answers · asked by Anonymous in Mathematics

alprazolam
klonopin
tussi- organidin
methylphenidate

2007-11-19 07:33:26 · 1 answers · asked by nony s 1 in Medicine

i think it would be a very unusual animal

2007-11-19 07:32:38 · 4 answers · asked by Hayley 2 in Zoology

In the Bohr model of the hydrogen atom, an electron (m=9.1*10^-31kg orbits a proton at a distance of 5.3*10^-11m. The proton pulls on the electron with an electric force of 8.2*10^-8N.

2007-11-19 07:32:11 · 3 answers · asked by mnhw2 1 in Physics

Three buildings collapsed. One plane each struck only two. The third was not hit by anything. If you examine the footage, you can see plainly that they were the result of a controlled demolition. The way the buildings crimp inward is the result of set charges being fired to blow the primary supports so that the building will collapse inward on top of itself. It is the same method used in every demolition of every tall building everywhere. The firefighters reported seeing pools of molten steel in the sub-basements for weeks afterward. Jet fuel does not burn hot enough to melt steel molten. It burns about 500 degrees cooler than is required to melt steel. How can this be explained? Why would President Bush want to kill innocent Americans and begin a war based on a heinous lie?

2007-11-19 07:28:16 · 15 answers · asked by ? 3 in Physics

Ok i need help finding the volume and surface area of these cylinders i will state the height first then the width or diameter. First one 11.5 by 6.Second one 5.5 by 3. Third one 110 by 60. thanks so much

2007-11-19 07:27:08 · 2 answers · asked by Nickels6 2 in Mathematics

I would like to know how much I can put on the trailer. The trailer is 4'x7', and the maximum loading weight is 790lbs. Thank you to anyone who replies.

2007-11-19 07:26:55 · 1 answers · asked by Anonymous in Physics

2007-11-19 07:23:31 · 7 answers · asked by naqi h 1 in Geography

the amount of radiant power produced by the sun is approximately 3.9 x 10^26 W. Assuming the sun to be a perfect blackbody sphere with a radius of6.69 x 10^8 m, find its surface temp in Kelvins. I think the answer is about 5800 K. But I have no idea how the answer was reached. can anyone help? thanks

2007-11-19 07:23:08 · 3 answers · asked by kwali 2 in Physics

I still have no idea what this term means in the real world sense

Can someone Pleasee explain it to me like i am a 10 year old what it means by a Short Circuit and an Open Circuit ?

2007-11-19 07:22:55 · 4 answers · asked by Anonymous in Engineering

(a) from + to -
(b) from - to +

2007-11-19 07:22:15 · 7 answers · asked by Alexander 6 in Physics

Ok i need the volume and surface area of each one of these cylinders. First 11.5(height) by 6(width). Second 5.5 by 3. Third and last 110 by 60 Please and thanks

2007-11-19 07:15:18 · 6 answers · asked by Nickels6 2 in Mathematics

how deep is it

2007-11-19 07:15:08 · 13 answers · asked by Anonymous in Geography

Thanks for your help and make sure you show your work!

A mover slides a refrigerator weighing 650N at a constant velocity across the floor at a distance of 8.1m. The force of friction between the refrigerator and the floor is 230N.
a) How much work has been performed by the mover on the refrigerator?
b)If the work was done in 55 seconds, then what is the power of the mover?

2007-11-19 07:14:28 · 2 answers · asked by j91621 2 in Physics

without looking at a map. just guessing.
you can give your nationality.

It is for making a study about how people "see" Europe, about the differences between real geography and mental maps.

2007-11-19 07:12:25 · 1 answers · asked by Europan 3 in Geography

WELL AND SEE ROCKS COMING FROM SKY ASK ME WHAT IS THIS

2007-11-19 07:06:43 · 4 answers · asked by lins 4 in Earth Sciences & Geology

i always wonder what it'd happen if you inject anti-venom into the specific venomous creatures. for instant, if you inject anti-venom that is specifically for cobra's venom into a cobra, would the cobra become venomless or die?

2007-11-19 07:02:49 · 4 answers · asked by ۞_ʞɾ_۝ 6 in Zoology

2007-11-19 07:01:49 · 5 answers · asked by Anonymous in Physics

i always wonder what it'd happen if you inject anti-venom into the specific venomous creatures. for instant, if you inject anti-venom that is specifically for cobra's venom into a cobra, would the cobra become venomless or die?

2007-11-19 07:01:45 · 3 answers · asked by ۞_ʞɾ_۝ 6 in Biology

Throughout these past few years I've been amazed at the medical errors, including the amputation of "good" limbs, operation on wrong organs, etc., and the alledged other medical mistakes which some say kill between 40 and 98,000 Americans each year!!!!

But this that I've just read makes my hair stand on end!

http://www.miamiherald.com/top_stories/story/313174.html

2007-11-19 06:59:26 · 3 answers · asked by mybusiness2 1 in Medicine

That night I dreamed the same dream except there was a couple of new additions to the dream, one being that the nuclear power plants that California uses to generate electricity with contributate to the destruction caused by the massive earthquakes, causing deep interior explosions that split the earth into segments instead of sections and the State of California is pushed away from the mainland USA and becomes an Island.

On top of that here are reprecussions felt around the world, from this massive earth movement and several Islands in the Caribbean can no longer boost a active tourist trade since their Island is completly underwater.

This is what I just dreamed will happen, so take it for what's it's worth, and don't be mad at me, I am just the messenger!!!!!

Yahoo staff will probably delete this question under one of their guideline rules, the "catchall" rules, but something that the Yahoo staff should consider is that Sunnyvale, California is in California and they are or will

2007-11-19 06:58:29 · 10 answers · asked by Headless Horseman 2 in Earth Sciences & Geology

2007-11-19 06:58:21 · 10 answers · asked by me 4 in Parapsychology

2007-11-19 06:57:54 · 2 answers · asked by uphilbigp 1 in Mathematics

2007-11-19 06:57:26 · 1 answers · asked by Anonymous in Chemistry

In what way are the constellations of Cepheus and Pegasus different in their movements and how do they differ?

2007-11-19 06:54:22 · 1 answers · asked by sweetnovember4 2 in Astronomy & Space

Determine if total number N of cards in the deck is prime number?

2007-11-19 06:51:48 · 7 answers · asked by Alexander 6 in Mathematics

i want to know how its fomed and were it comes from

2007-11-19 06:49:11 · 3 answers · asked by Anonymous in Geography

2007-11-19 06:48:32 · 21 answers · asked by Alexander 6 in Mathematics

3p - 1 = 5(p - 1) - 2(7 - 2p)

Would the answer be 3, 0, -9, or -10?

I keep getting a wrong answer!

2007-11-19 06:46:42 · 4 answers · asked by fattiecat07 1 in Mathematics