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Science & Mathematics - 12 July 2007

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

Factor completely:

150-5s-5s^2

2007-07-12 04:58:14 · 3 answers · asked by Anonymous in Mathematics

2007-07-12 04:55:57 · 5 answers · asked by Rebecca D 1 in Mathematics

x^2-7x=-10 ??? Isn't it prime???

2007-07-12 04:55:44 · 3 answers · asked by SadToday22 3 in Mathematics

We had a terribly warm Winter last year. It stayed in the mid 50s and upper 60s throughout November and December(It was awkward sweating while putting up Christmas Lights).

I'm aware that El Nino causes warmer than usual temperatures, but what about Nina? What effects will it have this year on the East Coast?.

2007-07-12 04:53:15 · 4 answers · asked by knightsofthethunder 1 in Weather

For a solar car I need to answer these questions
1. How does the solar cells transfer the energy from solar to electrical
2. How does the car transfer the energy from electrical to mechanical?

2007-07-12 04:51:52 · 5 answers · asked by Anonymous in Engineering

2007-07-12 04:50:46 · 6 answers · asked by G.xi 1 in Astronomy & Space

2007-07-12 04:49:08 · 12 answers · asked by Nanda K 1 in Zoology

pliz help by tellin mi the steps of the workin

2007-07-12 04:48:21 · 3 answers · asked by DODO 1 in Engineering

help solve for x

2007-07-12 04:47:41 · 5 answers · asked by Rebecca D 1 in Mathematics

when they are used in common emitter modes. and why are npn transistor preffered in high-sped circult.

2007-07-12 04:43:55 · 1 answers · asked by davemike04 1 in Engineering

Seriously?

Every time I use one - even if it's just liquid & tp, I have to flush and flush and flush.

Most of the buildings with these toilets have signs even that ask you to keep flushing until everything is gone.

How in the heck does this save water?

2007-07-12 04:41:43 · 5 answers · asked by Mytmel 2 in Earth Sciences & Geology

I heard that there was suppose to be a meter shower in 2030 something in my school science class. Is that true??

2007-07-12 04:37:54 · 13 answers · asked by Animal-luva4242 3 in Astronomy & Space

In isosceles triangle ABC , angle C is the vertex angle. If angle A=3x-6 and angle C=2x , find the measure of Angle B

24
46
48
66.

2007-07-12 04:35:50 · 9 answers · asked by Anonymous in Mathematics

Math proof that a limited time domain signal is infinite in the frequency domain & a limited band of frequencys signal that is infinite in freq domain, is unlimited in time domain. I suspect Fourier sereis and transforms are involved. Thax in advance.

2007-07-12 04:33:34 · 1 answers · asked by 037 G 6 in Physics

2007-07-12 04:30:50 · 9 answers · asked by lindasalicea 1 in Mathematics

I need to verify that I have applied the correct torque to our fasteners throughout our plant. How can I do this ‘during the process’ & ‘after the process’?

2007-07-12 04:30:07 · 6 answers · asked by Mike F 1 in Engineering

Math proof that a limited time domain signal is infinite in the frequency domain & a limited band of frequencys signal that is infinite in freq domain, is unlimited in time domain. I suspect Fourier sereis and transforms are involved. Thax in advance.

2007-07-12 04:30:02 · 1 answers · asked by 037 G 6 in Mathematics

How can you make a tri-halogen benzene ring, such that one is F, one is I, and the other is Br, alternating?

2007-07-12 04:26:55 · 2 answers · asked by chemistry! 1 in Chemistry

yes this is a crazy idea and im betting 9 out of 10 people will try and make jokes about it, but anyways here it is. ice melting into the ocean is a problem, as it would flood a lot of land in the ocean with its 250 foot higher ocean increase.

in popular mechanics theres something in development to launch all sorts of things into space for astronauts and space construction for things like satelites. i forget exactly how it works entirely, but it looks like a giant spiral, and has something to do with magnets. anyways, the longer they make it the faster they can make the objects travel so they can shoot them into space. the blueprints for the one was expected to be made within the next 5 or 10 years and was powerful enough to shoot things into space, with speeds of 7 miles per second.

so my idea is this, someway to transport water to the tube constantly to be shot into space. i doubt water would make it as far so maybe a cheap way to contain it for the launch. just a crazy idea....

2007-07-12 04:25:15 · 9 answers · asked by 12345 2 in Earth Sciences & Geology

2007-07-12 04:21:09 · 23 answers · asked by Madkiller24 1 in Chemistry

there are 4 blue and 12 white marbles in a bag. how many white marbles must be added to the bag to make the probability of drawing a blue marble 1/6?

2007-07-12 04:20:32 · 8 answers · asked by gkjsfh f 1 in Mathematics

LIke how? it seems our body is capable of renenwing itself forever so why does it slow down at all? it seems like a stupid question but our body seems to be able to carry out functions without a brain so why cant we keep living?

2007-07-12 04:15:30 · 7 answers · asked by Anonymous in Biology

Were mammals, in general are purpose is to stay alive, "fight of the fittest" Yet why do we care about others? Try and not be really obvious. In sense every other human is competition

2007-07-12 04:13:29 · 16 answers · asked by ♣Kermit the Frog♣ 4 in Biology

2007-07-12 04:11:37 · 10 answers · asked by Nanda K 1 in Zoology

I want to keep peanut oil at about 200 deg C over an extended period of time and I want to know which grade of common stainless steel would be recommended for this task? (preferrably 430 or 304 grade steel, but new suggestions are welcom as well)

2007-07-12 04:10:29 · 4 answers · asked by whitebeatz 1 in Engineering

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