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Science & Mathematics - 15 June 2006

[Selected]: All categories Science & Mathematics

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

please can you explain me how to get the answer.

y=-x+4x+5

2006-06-15 12:45:21 · 3 answers · asked by emerald 2 in Mathematics

2006-06-15 12:44:27 · 14 answers · asked by johnyunyk 1 in Biology

i need the answer to this question immeadiately like ASAP

2006-06-15 12:39:17 · 8 answers · asked by Ali M 1 in Mathematics

The above description takes place aboard a jet fighter. The same goes for sound waves why would you be able to hear yourself speak if you were traveling faster then the speed of sound?

2006-06-15 12:37:04 · 15 answers · asked by quest 1 in Astronomy & Space

The univers is big.... What is behind the universe?

2006-06-15 12:33:28 · 8 answers · asked by Funnyhorse2005 1 in Astronomy & Space

2006-06-15 12:27:37 · 13 answers · asked by Anonymous in Other - Science

how can you sovle the problem it's not a quadradic

2006-06-15 12:23:13 · 5 answers · asked by Anonymous in Mathematics

What is the one creature on the planet that destroys other creatures and the planet the most. But yet gives back very little if at all. 10 points to first person to answer correctly.

2006-06-15 12:12:34 · 9 answers · asked by ffantasy1984 3 in Other - Science

I'm thinking Celebrity Deathmatch here. Who would the winner be and why?

2006-06-15 12:09:46 · 9 answers · asked by imrational 5 in Physics

Scientist estimate the age of the universe to be approx 12-15 billion years old (depending on what the latest estimates are). They say they can see to within a second of the big bang by using the hubble to look at things 12-15 billion light years away. My question is, if it takes 12-15 billion years for the light from these objects to get here, and no object can travel more than the speed of light, and all objects started out at one point (the singularity) shouldn't it have taken at lease 12-15 billion years for the objects to get that far away in the first place?

2006-06-15 12:01:17 · 9 answers · asked by Dean H 1 in Astronomy & Space

One of the gracious Yahoo! Ask the Planet headquarters hostesses from the Hard Rock Cafe just asked this question of the Brainiacs in the big purple brain in Times Square, and we thought we would invite you all to help us out with this one. Who knows the answer?

2006-06-15 11:57:52 · 17 answers · asked by Fogjazz49-Retired 6 in Engineering

where is it right now in space? Is it spin around us in space?

2006-06-15 11:52:55 · 11 answers · asked by crazywill1@verizon.net 1 in Astronomy & Space

2006-06-15 11:51:47 · 7 answers · asked by Eduardo G 1 in Chemistry

Someone i know tried to convince me that it wasent, i showed him a map, it was flat. its hard to see through the smoke but you can see the map is not loke a ball shape world like the rokets came to.
cam you help me expln this to my "not so smrt frend"

2006-06-15 11:44:10 · 14 answers · asked by Me 1 in Earth Sciences & Geology

how do you square the number -2rad2?

like what is (-2rad2)(-2rad2)?

2006-06-15 11:40:17 · 5 answers · asked by hellokid 1 in Mathematics

The amount of water on earth everyone knows is very high but have you ever thought about the amount of drinks made around the world would equal to the amount of water we live around?

2006-06-15 11:37:36 · 11 answers · asked by sexy_mami_2006_mc 1 in Earth Sciences & Geology

2006-06-15 11:32:11 · 15 answers · asked by eagle_eyes 2 in Zoology

Okay, you have two little spaceships, both start out at the same speed, 99.9 the speed of light. They look across at each other and see that they are traveling the same speed. Then, one of the ships accelerates to twice it's original speed.

If an observer sees the two spaceships fly past, what will he see? If I understand it correctly, neither ship can actually go faster than the speed of light, they would instead be warping time. So how does that affect an outside observer who can't see the time effect?

2006-06-15 11:16:50 · 9 answers · asked by imrational 5 in Physics

I have a gas fired combination boiler (non condensing but quite new) which heats the hot water for taps instantly (at mains pressure), and which has a little pressurised tank for hot water central heating (1-2 bar). There is no hot water tank.

I want to install a wood-fired stove with a back boiler, which I think should be useful for topping up the heating in winter, cutting back on natural gas use.

I'd also like to have the option of installing (passive) solar thermal heating which I would like to use to supply hot water.

But with no hot water tank, and with the hot water at mains pressure, can this work?

2006-06-15 11:14:15 · 4 answers · asked by wild_eep 6 in Engineering

If you sprinkle iron filings on a paper held over a bar magnet you can see a indication of the magnetic field running from the south to the north pole of the magnet. What particles make up these so called lines of force?

2006-06-15 11:10:46 · 9 answers · asked by Larry P 1 in Earth Sciences & Geology

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