Science & Mathematics - 3 December 2006

topic

2006-12-03 17:35:10 · 3 answers · asked by Ryan 3 in Mathematics

what is oxidized and what is reduced? (I dont see anything losing H or gaining O. Please expalin.)

2006-12-03 17:33:44 · 2 answers · asked by Michael 1 in Chemistry

What should be the monitary Value of Element Collection including samples of Every Naturally Occuring Elements in the universe?

2006-12-03 17:33:25 · 2 answers · asked by †ђ!ηK †αηK² 6 in Chemistry

the volume of an object is found to be 24.7 cm3 and the mass is 16.21 g. calculate the density of the object to the correct number of significant digits.
a. 0.721 g/cm3
b. 0.6563. g/cm3
c. 0.7 g/cm3
d. o.656 g/cm3

2006-12-03 17:31:16 · 5 answers · asked by mgskills 1 in Chemistry

2006-12-03 17:24:41 · 4 answers · asked by Rock 1 in Physics

we got a light dusting...about an inch. i live off of rte 5/lakeshore rd....buffalo area

2006-12-03 17:21:04 · 15 answers · asked by someoneyoudontknow 2 in Weather

2006-12-03 17:18:04 · 6 answers · asked by mary ayola l 1 in Chemistry

2006-12-03 17:16:16 · 5 answers · asked by habibur Rahman 1 in Weather

questions about planets

2006-12-03 17:13:32 · 4 answers · asked by truism 1 in Astronomy & Space

2006-12-03 17:12:38 · 4 answers · asked by jeff w 1 in Biology

questions about planets

2006-12-03 17:12:18 · 6 answers · asked by truism 1 in Astronomy & Space

Hello - im so confused

I need help about when the sun is at the higest altiude, lowest.. stuffl like that... stuff like winter & summer solstices...

Dont get into detail... and please make it easy to understand ..
THANK U SO MUCH

2006-12-03 17:11:32 · 2 answers · asked by Xeel 1 in Weather

I have regular hydrometers to tell the specific gravity, anyone know what specific gravity converts to in ABV%?

2006-12-03 17:10:37 · 1 answers · asked by Anonymous in Physics

by using slope-intercept form y=mx+b

2006-12-03 17:09:42 · 1 answers · asked by esmeralda a 1 in Mathematics

questions about planets

2006-12-03 17:08:25 · 5 answers · asked by badfish 1 in Astronomy & Space

I'm studying logic and I'm on a chapter that talks abouts operations and contigent and horseshoes and dots and triple bars. Does anyone know of a good site I can look at to learn ?? I have a book and a CD and I've read the book and listened to the CD numerious times and I must be an idiot because I'm completely lost. Can anyone help me with a website please ??

2006-12-03 17:07:33 · 1 answers · asked by the_wicked_itch_of_the_west 3 in Other - Science

log2(x+1) = 5 - log2(x-3)

2006-12-03 17:06:58 · 2 answers · asked by thatonegirlamanda 2 in Mathematics

please help on simplyfing expressions.
1. (sq.root)12 - 2(sq.root)3
2. (sq.root)20 + (sq.root)80
show whether the expression is a solution of the equation.
3.x^2 - 6x +2 =0; 3 + (sq.root)7

2006-12-03 17:06:08 · 6 answers · asked by booo 1 in Mathematics

questions about planets

2006-12-03 17:04:46 · 10 answers · asked by badfish 1 in Astronomy & Space

Imagine infinite row of uniform spheres of mass m and radius r/2 touching each other. According to gravity theory the force acting on the first one would be sum of forces from all other spheres. The total force would be: F =Gm^2/r^(1+1/4+1/9+1/25+...+1/n^2), which gives us F=Gm^2/r^2(PI^2/6). Why (according to existing theory) infinite mass causes finite gravity? I've got some solution, but becouse is in MathType, can send it only as attachement and would appreciate if someone could check it out. My email is: kkris1@yahoo.com

2006-12-03 17:01:31 · 6 answers · asked by kkris1 1 in Physics

'The horizontal range,x, of a proiectile launched at an angle. degree, with the horizontal at an initial veiocitv, vi, can be determined by using:
x= (vi/g)*sin 2* degree
Prove that x has a maximum value when the degree is 45 degree. Give some examples.
sin 2* degree = 2 sin* degree* cos* degree.

i don't really know how to prove it, please show some examples

2006-12-03 17:00:08 · 2 answers · asked by Anonymous in Physics

find the domain of the function

y=7(sq.root)x

2006-12-03 16:59:32 · 6 answers · asked by booo 1 in Mathematics

2006-12-03 16:59:14 · 17 answers · asked by san_ranjan9 1 in Astronomy & Space

2006-12-03 16:58:33 · 6 answers · asked by san_ranjan9 1 in Astronomy & Space

Two grenades, A and B, are thrown horizontally with different speeds from the top of a cliff 70 m high. The speed of A is 2.50 m/s and the speed of B is 3.40 m/s. Both grenades remain in air for 3.77 s. Assume that the acceleration due to gravity is 9.86 m/s squared. What is the distance between A and B if they are thrown along the same straight line?


P.S. Please don't tell me to 'do my own hw.' If you don't want to help, don't. But don't say that cuz I would obviously do it if I understood it. Thanks.

2006-12-03 16:58:12 · 5 answers · asked by Anonymous in Physics

2006-12-03 16:57:59 · 1 answers · asked by ali s 1 in Biology

the smell of rain? I like it when the ground gets wet. And I love the feel of it when you get caught in it

2006-12-03 16:55:06 · 18 answers · asked by Anonymous in Weather

yet we measure time clockwise?

2006-12-03 16:53:41 · 16 answers · asked by Anonymous in Astronomy & Space

its about flowers..but clear answer of that

2006-12-03 16:49:48 · 5 answers · asked by shailaja s 1 in Botany

While thinking where the term might have come from, i thought of folds in a peice of paper, for every time you fold a piece of paper in half you get two bits of paper, so every fold doubles the number. So say 100 increased ten fold would be 100 x2x2x2x2x2x2x2x2x2x2= 100x2^10 = 100x1024 = 102 400. My dad thinks it comes from folds of bills of money, and therefore is just a straight multiplication, ie 100 increased 10 fold would be 1000. Anyone have any evidence of the true meaning and origin of the phrase?

2006-12-03 16:48:23 · 4 answers · asked by Chops II 1 in Mathematics