Science & Mathematics - 20 October 2007

Is it made of electriciy

2007-10-20 11:32:10 · 5 answers · asked by Anonymous in Biology

find all horizontal asymptote for f(x)= 6x/ (sqrt x^2 -3)

plese help me. i dont even know what to do.

2007-10-20 11:30:29 · 3 answers · asked by Anonymous in Mathematics

Is this 80 percent??????

2007-10-20 11:29:12 · 16 answers · asked by Anonymous in Mathematics

2007-10-20 11:28:29 · 2 answers · asked by sofia m 1 in Geography

A 21g ball is fastened to one end of a string 68cm long and the other end is fixed to a point on a ceiling that makes an angle of 28 degrees with the vertical. This angle remains constant as the ball rotates in a horizontal circle. The angle theta would remain constant only for a particular speed of the ball in a circular path. The accleration og gravity is 9.8m/s2. FInd this speed. Answer in m/s

2007-10-20 11:28:11 · 1 answers · asked by akanthasy 1 in Physics

for example dams...but i need more.. please help.

2007-10-20 11:27:53 · 10 answers · asked by Christina S 1 in Biology

im doing this investigatory project on how potassium affects the soap but i found out potassium content in bananas is low and that pure potassium would burn in water.. is there a way to extract potassium (or a compound of it) from another source that is not difficult to obtain?

2007-10-20 11:26:25 · 2 answers · asked by jtg371 2 in Chemistry

A 21g ball is fastened to one end of a string 68cm long and the other end is fixed to a point on a ceiling that makes an angle of 28 degrees with the vertical. This angle remains constant as the ball rotates in a horizontal circle. The angle theta would remain constant only for a particular speed of the ball in a circular path. The accleration og gravity is 9.8m/s2. FInd this speed. Answer in m/s

2007-10-20 11:23:28 · 4 answers · asked by akanthasy 1 in Physics

29 CU:

1S^2, 2S^2, 2P^6, 3S^2, 3P^6, 4S^2, 3D^9
or
[Ar] 4S^2, 3D^9
but that is not the right answer.

They say it is: [Ar] 4S^1, 3D^9 and so does wiki.
Why?

2007-10-20 11:21:41 · 4 answers · asked by evilshenanegans 1 in Chemistry

2007-10-20 11:16:41 · 0 answers · asked by sarahx3l 1 in Chemistry

what is best octet representation of the compound hydrogen sulfide?

2007-10-20 11:09:32 · 1 answers · asked by Raisa S 1 in Chemistry

True or False?

1.)A binary operation on a set S assigns at least one element of S to each ordered pair of elements of S.
2.) A binary operation on a set S assigns at most one element of S to each ordered pair of elements of S.
3.)A binary operation on a set S may assign more than one element of S to each ordered pair of elements of S.

Can someone tell me why it makes the statement T or F? Thanks!

2007-10-20 11:08:26 · 1 answers · asked by Whiterose7 2 in Mathematics

How many moles of potassium iodide, KI, must be used to make 1.500 L of a 0.2 M solution?

Could you also explain how you get the answer?

2007-10-20 11:06:34 · 1 answers · asked by falconsfreak08 1 in Chemistry

Which of the following designations, polar or nonpolar, are correct for the given compounds below ?

a) F2 : polar
b) CCl4 : nonpolar
c) CaCl2 : polar
d) CH3CH2F : nonpolar

2007-10-20 11:02:51 · 1 answers · asked by jason g 1 in Chemistry

2007-10-20 10:49:43 · 9 answers · asked by Charlie B 1 in Engineering

2007-10-20 10:49:34 · 14 answers · asked by Pebble & the Man 3 in Mathematics

2007-10-20 10:48:13 · 5 answers · asked by MissLady 3 in Weather

I heard about a pair of glasses that can make light "brighter".

Example: You're in a room and light a candle. The glasses make the room seem brighter, like it's being lite by multiple candles.

Is this real? Is so, where can I find them?

2007-10-20 10:39:30 · 1 answers · asked by daved4minigolf 2 in Other - Science

I've been searching online for seven and a half hours, trawling through scientific papers about unrelated subjects because the journal search engine is rubbish. Please, someone out there must know the answer.

2007-10-20 10:38:26 · 7 answers · asked by Katri-Mills 4 in Biology

basically i need to go from ax^2+bx+c=0 to the quadratic formula without using completing the square. any suggestions?

2007-10-20 10:36:04 · 6 answers · asked by HaLo_3 1 in Mathematics

What the hell are these things and how do I get rid of them? I've discovered them in my pantry and I want them gone.

2007-10-20 10:31:12 · 1 answers · asked by DialM4Speed 6 in Zoology

I need help finding the natural features of Florida. i need it for a report due on october 22nd. so it URGENT!~!!!!

2007-10-20 10:30:41 · 6 answers · asked by Dorinda 2 in Geography

I am writing a ghost story for work and I need to know the most commonly told theorys for getting rid of a ghost.

2007-10-20 10:30:18 · 23 answers · asked by k_thirion 1 in Paranormal Phenomena

And write a line tangent to the graph at x=1

2007-10-20 10:29:18 · 9 answers · asked by Jim 1 in Mathematics

Like is there like a "magic number" that the humidity has to be at least for it to be enough to cause rain?

2007-10-20 10:27:34 · 6 answers · asked by Anonymous in Weather

lim (1-x+ln(x))/(1+cos(pi x))
x->1

I come up with -1/2pi But I think I am wrong

2007-10-20 10:25:35 · 2 answers · asked by Smokey. 6 in Mathematics

please help me to draw this pic. i dunno how to. please give me like step by step instructions.

2007-10-20 10:18:35 · 1 answers · asked by damigurl05 1 in Biology

a.) if a homozygous purple is crossed w/ a homozygous white, what will be the phenotype and genotype of the F1 generation.

B.) what be the penotype and genotype of the F2 generation

please explain how i figure out F1& F2 generation

2007-10-20 10:09:00 · 1 answers · asked by damigurl05 1 in Biology

I mean, I know poison are substances that are toxic to the bodies of plants, animals, fungus and other microscopic beings; however, is there a comon characteristica that all these kind of substances share? Why do they have to be harmful? What make swallowing mercury different from swalloing a coin?

2007-10-20 10:03:54 · 7 answers · asked by pascuachín 2 in Other - Science

v=3 u=<4,-4>

2007-10-20 10:03:24 · 2 answers · asked by fdgsdfg d 1 in Mathematics