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Science & Mathematics - 7 September 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

I have always wondered. As a young girl, I had a stuffed squirrel and a stuffed lion, and the squirrel was biggest. However, I think I have heard that lions are even bigger than house cats which are definitely bigger than squirrels.

2007-09-07 08:34:24 · 9 answers · asked by Royal 4 in Zoology

Mines is
Kananiakeonemekekaimana-
po'oana'akala

its hawaiian for
"the beauty of the sand and sea at sunset"

(34 letters)

2007-09-07 08:32:29 · 22 answers · asked by Anonymous in Earth Sciences & Geology

show the steps

2007-09-07 08:32:20 · 3 answers · asked by stephanie n 1 in Mathematics

rubidium reacts violently with water, what chemical change causes that.

2007-09-07 08:23:53 · 4 answers · asked by Jeffery C 1 in Chemistry

I have to answer a question and both control and controlled are in my choices. Also in my choice is the answer both control and contolled. The question ask if a patient receives a placebo drug, what kind of experiment is that? control, controlled, treatment, manupilated, or both control and controlled. thanks

2007-09-07 08:17:24 · 3 answers · asked by savemore 3 in Medicine

2007-09-07 08:06:35 · 4 answers · asked by Anonymous in Mathematics

1) An electron, starting from rest and moving with a constant acceleration, travels 1.9 cm in 3.8 ms. What is the magnitude of this acceleration is km/s^2.
I got 5 x 10^-4 km/s^2. Is this correct????

2) A tennis ball with a speed of 12.6 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 10 m/s. If the ball is in contact with the wall for 0.014 s, what is the average acceleration of the ball while it is contact with the wall?
I got the answer 1614.29 m/s^2. Is this right???

2007-09-07 08:05:43 · 1 answers · asked by lola 1 in Physics

does anyone know how to remove oxidation from nickel?
I have old nickel coins that have crud all over them, and I have tried all the conventional methods and most do not work.
now the only things remaining are the harsher acids. thanks

2007-09-07 08:03:06 · 6 answers · asked by art_flood 4 in Chemistry

Can someone slove, teach and explain this equation??? ( Word problme)

The quotient of a number and 3 is the same as the difference of the number doubled and 5. What is the number?

2007-09-07 07:59:11 · 4 answers · asked by SaySay 2 in Mathematics

3 reasons please.
Thanks,
Lorna

2007-09-07 07:59:03 · 13 answers · asked by Anonymous in Chemistry

I think it's a liquid but I'm not entirely sure.
xx

2007-09-07 07:54:41 · 5 answers · asked by Anonymous in Chemistry

We are wanting to install two thousand pounds of equiptment on our commercial roof.The roof is very thin,tar and gravel type,with joist at 60 inches.

2007-09-07 07:52:36 · 3 answers · asked by Anonymous in Engineering

you know, with the saying, "cried great big crocodile tears"?

2007-09-07 07:49:30 · 7 answers · asked by Walker 1 in Zoology

I'm currently a sophomore major in EE in college.
I have learned calculus1-3 and I'm taking differential equation now.

I get the feeling that math may be the most useful and desirable major I know,I'm thinking about changing major.
But I'm not smart at all and dumb when it comes to math or science.

2007-09-07 07:48:49 · 17 answers · asked by Jason N 2 in Mathematics

2007-09-07 07:48:45 · 3 answers · asked by daphne 1 in Mathematics

3 over 2x +1 over 10 = 2 over x


i need to solve for x. i tried several times & i just couldnt understand it. thanks

2007-09-07 07:48:31 · 7 answers · asked by loope 1 in Mathematics

This question is not as stupid as it sounds: it relates to a law I half-remember in Physics, about the preservation of Energy.

2007-09-07 07:47:21 · 6 answers · asked by Anonymous in Physics

...using the left, right, trapezoid and simpson's rules. use what you know about approximate error to answer the following questions.

suppose left(40)=2.3055 estimate left(160).
suppose trap(40)=2.7250 estimate trap(160)
suppose simp(40)=3.1680 estimate simp(160)


HELP!
i'm very much confused.
explain it step by step, please.
i am really trying to learn this stuff.

2007-09-07 07:47:02 · 2 answers · asked by Anonymous in Mathematics

If a guy drank water really slowly continuously, and then waited until he had to pee and kept drinking really really slowly, and then peed again, still drinking, could he eventually create and endless cycle of drinking/peeing?

2007-09-07 07:45:18 · 4 answers · asked by Anonymous in Other - Science

Why is it that companies use lead in the paint? Is it cheaper to make or what? I'm really curious!!!!!!!!!

2007-09-07 07:43:51 · 4 answers · asked by Junior 2 in Chemistry

I don't have time to explain why I need to know this, but I need the names of some famously terrible scientists (bonus points if they're chemists). Also welcome are names of pioneers of various pseudosciences. My ability to find pictures of these people is crucial so keep that in mind. Thanks!

2007-09-07 07:42:34 · 7 answers · asked by purefragilehaze 2 in Other - Science

2007-09-07 07:40:49 · 11 answers · asked by Anonymous in Zoology

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