Science & Mathematics - 1 October 2006

2006-10-01 12:19:19 · 8 answers · asked by Anonymous in Mathematics

2006-10-01 12:16:06 · 4 answers · asked by tom science 4 in Astronomy & Space

Consider the data set that is summarized in Minitab Output below:
Stem-and-leaf of Data
N = 30
Leaf Unit = 1.0

4 2 3469
7 3 178
10 4 157
15 5 36679
15 6 124566799
6 7 36
4 8 34
2 9 26


N= 30
N*=0
Mean=57.17
SE Mean=3.62
StDev=19.84
Minimum=23
Q1=40.25
Median=60
Q3=69
Maximum=96

Answer the following:
(a) According to Chebyshev’s rule what is the minimum number of observations that will fall between 17.49 and 96.85 ?

( b) What is actual number of observations that fall in the interval in (a)?

2006-10-01 12:15:09 · 1 answers · asked by Anonymous in Mathematics

x+y=7
x*y=-60

2006-10-01 12:13:24 · 6 answers · asked by beeboroachgoingon197 1 in Mathematics

at night if you watch the horizon you will fidn that hudge areas of the night sky will light up for a fraction of a second what are these?
even if there is no storms or clouds in the sky

I read somwhere that they are believed to be bolts of lightning generated by the gravity of the earth but im not to sure

2006-10-01 12:13:09 · 11 answers · asked by Anonymous in Earth Sciences & Geology

why does gravity on earth pull to the centre of the world but the gravity of the sun forces us to go around the sun and be part of the solar system.

2006-10-01 12:09:41 · 8 answers · asked by Anonymous in Earth Sciences & Geology

Can you please answer the following question in terms of changes in energy and work?

A 500g block is shot up the incline with angle 25 degrees at an initial speed of 200 cm/s. How far up the incline will it go if the coefficient of friction between it and the incline is 0.15?

I think my book might have made a mistake..

2006-10-01 12:07:04 · 1 answers · asked by Anonymous in Physics

like, why does the iron fillings and why doesnt the lump?
Is it just because the surface area is higher so there more reaction or something?
*so bad for this*
but thank you in advanceee..

2006-10-01 12:05:35 · 4 answers · asked by Anonymous in Chemistry

Mine is black with a yellow stripe going down the middle of it. With Yellow stripes at the top of it.

2006-10-01 12:01:03 · 2 answers · asked by falloutgirl349 1 in Biology

2006-10-01 12:00:16 · 1 answers · asked by Anonymous in Chemistry

Ive tried all cures.

2006-10-01 12:00:13 · 13 answers · asked by Anonymous in Medicine

I'm having some trouble with my chemisrty homework and all I know is the answer is 1.19, but we have to show work so if you do get that answer can you explain or show how you got that answer (please and thank you)

When 121g of antifreeze was added to 400ml of water, the resulting solution's volume was 437ml. What is the specific gravity of this solution?

2006-10-01 12:00:10 · 2 answers · asked by Smiling Emily 2 in Chemistry

2006-10-01 11:58:45 · 3 answers · asked by t31t 1 in Mathematics

2006-10-01 11:57:52 · 6 answers · asked by SYL 1 in Mathematics

anyone know where i would be able to find problems for organic chem. NOMENCLATURE (with answers included)......studying for an exam, and i really need practice

thanks

2006-10-01 11:54:44 · 3 answers · asked by liljjg 2 in Chemistry

3x + 4y = - 13
3x= -13 – 4y
x = 13/3 – 4y/3

5y - x = - 21
5y – (- 13/3 – 4y/3) = - 21
5y + 13/3 + 4y/3 = - 21
5y + 4y/3 = - 21 – 13/3
15y+4y/3 = - 63 –13/3
19y/3 = - 76/3
19y = - 76
y = - 76/19 = - 4

x= 13/3 + 4/3 * 76/19 = -1/3( 13 - 4*76/19) = -1/3 (247-304)/19 = 1

The Solution set is ( 1, -4)

How would anyone else do this, besides just plugging in the "known?" gee willikers

2006-10-01 11:49:48 · 2 answers · asked by Anonymous in Mathematics

I have seen four inch wasps, hornets, and bees in the area that I live. A friend of mine found one of these giant hornets, and showed it to me. It's definitely not a queen.
I've heard of some genetic modifications in insects to help in agriculture, but this is insane.

2006-10-01 11:49:31 · 5 answers · asked by almostdead 4 in Zoology

2006-10-01 11:49:23 · 6 answers · asked by crazykarma_y2k 2 in Chemistry

i wonder because my daughter has brown/brown, and my son is blue/blonde. ironic because my brother and i were the same. its weird to look at my kids because they resemble my brother and i a lot.... so how is this possible? what makes it happen?

2006-10-01 11:47:37 · 5 answers · asked by don't be rude. 3 in Other - Science

Since most medical schools now don't care what you major in, I am looking at undergrad majors. I am a science-oriented person, anyway, but I was interested in majoring in a science degree more general than pre-med.

Because of the suggestion not to specialize too early, I am not looking at neuroscience much. It is a possibility, however.

The three I'm looking at are biology, chemistry, and physics, as well as biochemistry, biophysics, etc.

My question:
Of those majors/sciences listed above, which science most relates to neurology (and which should I choose as a major)?

(P.S. If you know of a university with a good (science) department, give that, too.)

Thanks a lot! (And no, I'm not only looking for these answers on Yahoo Answers)

2006-10-01 11:47:34 · 5 answers · asked by c90 4 in Medicine

the answer needs to be in hrs.

the solution i tried was.

G (Me)/ r^3 = w^2

then f = w/2(pi)

T= 1/f


this is how the instructor showed us and it isnt working.

2006-10-01 11:47:30 · 3 answers · asked by robtrink 1 in Physics

I need to design an experiment to test the effects of air pollution on plants. And I need to Include a control. Any ideas??

2006-10-01 11:46:44 · 6 answers · asked by Josh 2 in Biology

I just need something specific besides the thought that one makes balloons lift and the other just makes it fall but is still light.

2006-10-01 11:46:25 · 7 answers · asked by jessie_loves_ruben 1 in Chemistry

i need a complete list of all the elements essential for life but i cant find anythin. help please!!

2006-10-01 11:44:30 · 6 answers · asked by Jess♫ 2 in Chemistry

2006-10-01 11:44:29 · 6 answers · asked by Pietro M 2 in Biology

It was was busy and the poor girl spilled it on me, my favorite jeans and a white Banna Republic microfiber shirt. It is so bad and I am a voluntary minimalist ,so I kind of need these clothes. Thanks.

2006-10-01 11:44:17 · 5 answers · asked by sweet pea 3 in Chemistry

2006-10-01 11:41:46 · 7 answers · asked by brave x 1 in Astronomy & Space

2006-10-01 11:38:03 · 2 answers · asked by natureadam2000 1 in Earth Sciences & Geology

2006-10-01 11:36:42 · 3 answers · asked by Anonymous in Biology

What is the purpose of finger & toe nails? The only purpose I can see is for the protection of the tips of fingers & toes. But why are they there? What causes them to grow?

2006-10-01 11:34:23 · 5 answers · asked by jbax7771 1 in Biology