Science & Mathematics - 15 July 2007

Fake reports of us Man landing on moon. with lots of evidence to disprove it.

2007-07-15 17:53:47 · 10 answers · asked by mohamed_shukoor2000 2 in Astronomy & Space

...including every sized square? That means 1by1 squares, 2by2 squares, 3by3 squares. I know there is not 64 squares since that would only account for all the one by one squares. I also ask for a formula that will help you find the number of total squares for any n x n chessboard.

2007-07-15 17:52:51 · 6 answers · asked by Daniel 2 in Mathematics

2007-07-15 17:45:24 · 15 answers · asked by Bumper Crop 5 in Agriculture

of f(x) = (x^2-2)^2(4-2x)
i dont get it

2007-07-15 17:41:16 · 11 answers · asked by alfreddood 1 in Mathematics

How many joules of heat energy are required to raise the temp of 10 grams of liquid water from 25 degree Celcius to 35 degree Celcius?

2007-07-15 17:39:54 · 4 answers · asked by L L 1 in Chemistry

When using very high voltage (>10,000 V) and very low current, how might changes in voltage affect the maximum arc length produced between two terminals?

(ie. how much longer can I make an arc by further stepping up the voltage)

2007-07-15 17:38:18 · 2 answers · asked by jsprplc2006 4 in Engineering

1) What is the work done by you on a book that you lift straight up off a table?
- positive
- negative
- zero
- can not determine
2) You are in a game of toss the water balloon. When you catch the balloon that is thrown to you, the work you do is
- positive
- negative
- zero
- not enough information
3) You are holding your cell phone to your ear. You are doing
- positive work on the phone.
- negative work on the phone.
- zero work on the phone
- not enough information
4) You are throwing a ball against a wall so that it bounces off the wall with the same speed that it hits the wall with, the work done by the wall on the ball is
- positive
- negative
- zero
- not enough information
5) You are parachuting out of an airplane. Once your parachute opens, as you fall the work done by gravity on you is
- positive
- negative
- zero
- not enough information

2007-07-15 17:34:06 · 4 answers · asked by Anonymous in Physics

what are the four polymers? i can't find them on the net...maybe oyu guys know...?

2007-07-15 17:33:51 · 3 answers · asked by Anonymous in Chemistry

In Apocalypto, there is a scene where people are being sacrificed. The guy gets his body jabbed with a knife, and his heart pulled out. He stares at his heart in absolute shock.

I thought from the sheer pain of getting your heart cut out, you would die instantly.

Is that possible to still be alive, even while your heart is outside of your body? Even if it's for about a few seconds?

2007-07-15 17:33:07 · 10 answers · asked by Joey T 3 in Biology

if had a styrofoam cup and liquid nitrogen was added to the cup and then recorded the mass vs time on a graph. And then had a stryofoam cup that had a wider mouth and liquid nitrogen added to the cup and then recorded the mass vs time on a graph. Would the slope of the graph be greater, shallower, or the same for the cup that had the wider mouth??

2007-07-15 17:25:33 · 2 answers · asked by lola 1 in Physics

What are your beliefs???

2007-07-15 17:20:18 · 11 answers · asked by Anonymous in Zoology

Check your weather ! Four seasons are different.
But human by-product or their excessive industrial wastage causes global warming.
bonikingv- Big blue marble is called earth .

2007-07-15 17:12:12 · 9 answers · asked by Anonymous in Astronomy & Space

I think, if some species tortoise were dropped in the water, that they would sink. But are there any other animals that would be entirely unable to save themselves if they were somehow caught in the water?

2007-07-15 17:09:22 · 13 answers · asked by spirouack 2 in Zoology

from n=1 {sum} to infinity of 1 / [2 + (5)^n]

2007-07-15 17:09:03 · 5 answers · asked by beeboppinbippity 1 in Mathematics

...Bran muffin that collides with an unstoppable piece of toast, what happens to the nooks and crannies?"

Extra: Ignore all of the factors concerning the jelly and your preferred buttery spread.

2007-07-15 17:08:18 · 9 answers · asked by Anonymous in Other - Science

I have tennis elbow and would like to try some magnetic therapy on it. I have a bunch of small but powerful refrigerator magnets that I would like to wrap against the elbow, but I'm not sure how to space them or which side makes contact with the skin. Is it the side that sticks to the fridge door or the one that is repelled?

thanks in advance to anyone who can shed some light here..

2007-07-15 17:02:49 · 3 answers · asked by TheotisTurf 1 in Engineering

2007-07-15 16:57:50 · 10 answers · asked by Amy 4 in Astronomy & Space

Dmitri Mendeleev, a famous Russian chemist who developed the Periodic Table in 1869, said that burning petroleum 'would be akin to firing up a kitchen stove with banknotes'. Why did he believe that petroleum was too valuable to burn?

2007-07-15 16:57:32 · 4 answers · asked by lilangelsarah23 1 in Earth Sciences & Geology

That's from what I heard in King of the Hill. If it's not true what do animal control doctors do?

2007-07-15 16:57:19 · 7 answers · asked by leighofsuburbia 3 in Zoology

Like, would it screw up our solar system and affect the Earth?

2007-07-15 16:54:25 · 8 answers · asked by mike 1 in Astronomy & Space

suppose two equal and opposite charges are arranged as shown, and that the Q1=Q2=4.0 mico coulombs while the distance between the charges (a)=10cm.

Q1-------------------Q2

consider the point P, located at a distance=5cm directly above Q2

1)draw arrows showing the electric field contributuions of each charge at P.

2) Calculate the net total electric field vector, magnitude and direction at P


im so confused by this question, you dont have to give me the answer just a hint on how to solve..thanks

2007-07-15 16:54:20 · 0 answers · asked by Kel 1 in Physics

Rather than spending money to further reduce gas emissions from their power stations, the Dutch government has decided to spend $35 million on reduction of sulfur emissions in neighbouring Poland and $300 million in tropical countries to plant new trees in areas where the trees have been felled. Why did the government make this decision?

2007-07-15 16:54:15 · 2 answers · asked by lilangelsarah23 1 in Earth Sciences & Geology

an aluminum bar was first placed in liquid nitrogen and then in water. When the bar was placed in the water, it formed ice. What caused it to form ice?

2007-07-15 16:48:21 · 5 answers · asked by lola 1 in Physics

I.e. All these health problems, I would guess that evolution would have weeded out all the maladaptive individuals! i know that it takes millions of years to evolve but I don't have that much time, I want to see the evolution of the humans soon.

2007-07-15 16:47:57 · 17 answers · asked by Ricky R 1 in Biology

for example ;the compression ratio of engine is well known that how much this volume is compressed..20:1

2007-07-15 16:44:44 · 2 answers · asked by Anonymous in Engineering

Why are they so popular?

2007-07-15 16:43:49 · 2 answers · asked by ? 3 in Botany

If we supposedly evolved from primates, how come there are still non-human monkeys and apes to this day and they are not humans.

2007-07-15 16:42:35 · 12 answers · asked by Anonymous in Biology

Hokay so! i'm writing a historical fiction and i sorta need a list of wild animals distintcly native to Korea. For example....uhhh New Zeland has the Kiwi bird and....yeah stuff like that! thanks!!

2007-07-15 16:32:41 · 6 answers · asked by Anonymous in Zoology

Why does vinegar make steel marble rust faster than
water, beer, and Pepsi?
Can you please explain how it rusts?

2007-07-15 16:30:53 · 4 answers · asked by Peatar 2 in Chemistry

2007-07-15 16:28:56 · 8 answers · asked by Miss Happy 1 in Mathematics