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Science & Mathematics - 19 December 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

In my previous question http://answers.yahoo.com/question/index;_ylt=AsHKwJRcx.7FuFV._U.6FlAjzKIX?qid=20061006180743AAME80I
I asked for feedback about the 1st version of the design.

Criticism was raised that the burden of the proof rests on me, yet I remain unconvinced that there is not significant conceptual proof.

If it is true as before that a weight applied to the uppermost end of a see-saw has the force to move another weight horizontally, especially on a track when each weight has wheels, it seems that the primary remaining difficulty is geometry, for as I have found before, when the see-saw tilts at 45 degrees, a weight applied at the uppermost end is sufficient to move another weight more than half of the distance, but not all the way.

Now consider that I have found a certain configuration using a triangular track and a less than 45 degree tilt that seems to solve this problem, especially when the cord is pulled horizontally by contrast to the tilted track.

2006-12-19 15:11:47 · 4 answers · asked by NathanCoppedge 6 in Physics

The popular TTL series or 74 series and 54 series, What does 74 and 54 stand for

2006-12-19 15:10:23 · 2 answers · asked by Anonymous in Engineering

I know there are many movies out there about cloning a human being, and a lot of people are against it. I'm a young dude and unfortunately, I have a chronic disease. I don't know how long I can live. Everyday, I think about my life expectancy. Any country will allow cloning a human being, so I can clone myself for an organ?

2006-12-19 15:07:38 · 8 answers · asked by itguru5354 1 in Biology

How many valence electrons are there in Ag? And basically, how do you determine valence electrons in general?

2006-12-19 14:57:27 · 5 answers · asked by pockochocko 2 in Chemistry

2006-12-19 14:56:10 · 13 answers · asked by Anonymous in Astronomy & Space

2006-12-19 14:55:23 · 14 answers · asked by reggae ignoramous 1 in Astronomy & Space

Like when the first humans on earth started, did the current natural eye colors exist in ever human being, or did they all have the same eye color? Or so did eye color change? Why isn't there pink, purple, orange, etc.?

2006-12-19 14:54:56 · 5 answers · asked by Anonymous in Biology

where is it ?

2006-12-19 14:52:42 · 4 answers · asked by andy9junev 1 in Engineering

An automobile traveling along a straight road
increases its speed from 45 ft/s to 59 ft/s in
180 ft.
If the acceleration is constant, how much
time elapses while the auto moves the 180 ft?
Answer in units of s.

2006-12-19 14:51:53 · 6 answers · asked by Anonymous in Physics

Red Tide Plankten is a glowing fungis in the ocean a phenonemon that will come back soon

2006-12-19 14:49:06 · 3 answers · asked by Jae_Diego 1 in Earth Sciences & Geology

2006-12-19 14:47:35 · 6 answers · asked by Anonymous in Mathematics

and wht kind of a study is it called?

2006-12-19 14:45:09 · 5 answers · asked by L0cA Ch!Ca 1 in Other - Science

what is going on? I am loving it,,,,,,,, I hope it last, but at the same time I haven't seen Al's movie, and I am scared he is right? It usually snows on my birthday every year in November, I am dreaming of a white Christmas!!!!!!!!

2006-12-19 14:44:53 · 8 answers · asked by ? 3 in Weather

Must be factored by the difference of squares
(a+b)(a-b)=a^2 - b^2

4x - 36x^ 3

also try

8x^2 - 32y^2

2006-12-19 14:40:15 · 8 answers · asked by Beverly Q 1 in Mathematics

2006-12-19 14:38:27 · 3 answers · asked by eduardaberry 1 in Chemistry

2006-12-19 14:37:50 · 7 answers · asked by Johnathan R 1 in Mathematics

x^2 +3n -18=0
solving for x

2006-12-19 14:37:44 · 5 answers · asked by Beverly Q 1 in Mathematics

f(x) = 2*sqrt(x), 1<= x <= 4
this means using the polynomial basis set p1(x) = {1,x} with the standard Inner product for continuos functions C[a,b] to form an orthonormal basis. Then find g(x) = C0+c1 x so that it approximates the function f(x) over the interval [1,4]

2006-12-19 14:37:22 · 3 answers · asked by Sir J 1 in Mathematics

2006-12-19 14:36:43 · 13 answers · asked by Anonymous in Biology

2006-12-19 14:33:57 · 6 answers · asked by Anonymous in Astronomy & Space

preferabley the needs of a golden eagle

2006-12-19 14:33:33 · 5 answers · asked by icaboe 1 in Zoology

We havent got ANY snow at all, When is it going to start . Whats ur opinon

2006-12-19 14:32:49 · 8 answers · asked by Anonymous in Weather

44)What is the volume of 4.00 moles of C02 gas at SIP?
A) 44.8 L
B) 22.4 L
C) 89.6 L
D) 11.2L

45)Which of the following is a chemical property of water?
A)it evaporates
B) it freezes
C)it decomposes into H2 and 02
D)it boils

47)The formula N204 is an example of
A)an ionic formula
B) a structural formula
C) an empirical fonnula
D)a molecular formula

48)What is the gram formula mass of CNH4)3P04?
A) 404 g
B) 121 g
C) 113g
D) 149 g

2006-12-19 14:31:47 · 4 answers · asked by James O 1 in Chemistry

First one who answer right with a good description gets best answer....

2006-12-19 14:31:03 · 5 answers · asked by CubsDominate21 1 in Engineering

2006-12-19 14:29:15 · 8 answers · asked by dopepink 1 in Mathematics

well, for example, and dont critisize or whatever about my example, but vinigar and baking soda makes a slow explosion of CO2, well, are there chemicles i can get around my house to make an implosion? i just want to see it

2006-12-19 14:25:38 · 4 answers · asked by Anonymous in Chemistry

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