Science & Mathematics - 19 August 2007

2007-08-19 16:55:45 · 1 answers · asked by diane_purple2000 1 in Botany

Winston can mow his dads lawn in 1 hour less than it takes his brother Will. If they take 2 hours to mow it when working together then how long would it take Winston working alone?

2007-08-19 16:53:11 · 3 answers · asked by Anonymous in Mathematics

where can i find a map of all the constellations

2007-08-19 16:52:09 · 6 answers · asked by Twilight182 4 in Astronomy & Space

The function f is linear and satisfies f(d+1)-f(d)=3 for all real numbers d. What is f(3)-f(5)?

2007-08-19 16:47:21 · 7 answers · asked by bob 2 in Mathematics

2007-08-19 16:45:48 · 4 answers · asked by diane_purple2000 1 in Medicine

What do you prefer?
do like waking up to a new day
or is the redsky and sun going down at night a nice end to the day?

I guess I prefer Sunrise, its hopeful and a sign of new things

2007-08-19 16:43:06 · 27 answers · asked by purplehoneycomb 5 in Weather

solve the rational inequality. state the solution set

2007-08-19 16:40:51 · 1 answers · asked by mustang_muscle06 1 in Mathematics

isnt it so certain months have the same seaons year round?

2007-08-19 16:39:54 · 7 answers · asked by Twilight182 4 in Astronomy & Space

Ive dug a small hole for my launch site (2ft round by 2ft deep) I figure this should contain the better part of the initial blast, while sending my trash can rocket soaring into the sky. my ignition system is a car battery with two wires set to arch when I throw the switch.(from a good 100 feet away). this should be good!!!!!!!!!!!!!!!!

2007-08-19 16:38:54 · 10 answers · asked by jimmyz2117 2 in Engineering

2007-08-19 16:38:48 · 4 answers · asked by Anonymous in Earth Sciences & Geology

An artist wants her painting to be in the shape of a golden rectangle. If the lenght of the painting is 36 inches, then what should be the width?

2007-08-19 16:38:48 · 1 answers · asked by mustang_muscle06 1 in Mathematics

and also where can i find website with similar problems with that and please show solution thank you

2007-08-19 16:37:13 · 4 answers · asked by Camille D 1 in Mathematics

I'm aware of the fact that galaxies are in motion, but why is it that we don't see them as moving? As in you look through a telescope, find a galaxy, and it looks like its just sitting there. (note: i've never actually seen a galaxy through a telescope, ARE they actually moving when you look at them? i'm almost certain there not, but I don't want to sound like an idiot if i'm wrong on the whole thing.)


and since our galaxy is in motion, why doesn't our view of "extragalactic" objects change as our system moves and changes position through the milky way?

2007-08-19 16:37:05 · 9 answers · asked by a deadly rope 2 in Astronomy & Space

I have a new bee in the garden this summer on my sunflowers. It's solid, shiny black, roughly the size/shape of a honey bee, and definitely a pollen gatherer. It doesn't have ANY striping whatsoever. It has pollen carrying sacs on it's hind legs, which to me indicate some kind of honey producing bee. Does anyone have any idea what type it is?

2007-08-19 16:34:38 · 3 answers · asked by Doc Holliday 2 in Zoology

2007-08-19 16:33:32 · 2 answers · asked by yoshi 1 in Earth Sciences & Geology

2007-08-19 16:32:28 · 4 answers · asked by Anonymous in Geography

2007-08-19 16:29:25 · 2 answers · asked by Anonymous in Zoology

in chemistry we took a penny and put it into a solution of zinc and sodium chloride. it turned silver, and then we took it out and put it over a flame for about 6 seconds. i know it's not REAL gold, but how does this work??

2007-08-19 16:28:05 · 2 answers · asked by ddcb09 2 in Chemistry

i need to know a good way to test this question. tell me any experiment that can support this question..

2007-08-19 16:27:49 · 4 answers · asked by Anonymous in Physics

There is a 2-hour online free movie that seems to be of very high quality, similar to "What The Bleep Do We Know" that alleges that all religions are "the same" more or less, and are just based on astronomy.

http://zeitgeistmovie.com/

There are three major parts in that movie.

How accurate are the "facts" alleged in Zeitgeist 2007 The Movie?

2007-08-19 16:25:00 · 2 answers · asked by Suzie Q 1 in Astronomy & Space

2007-08-19 16:23:25 · 6 answers · asked by ADS 2 in Mathematics

For a reaction, DH = +265 kJ and DS = +271.3 J/K. At what temperature will DG = 0.00?


a. 6.30 K
b. 102 K
c. 359 K
d. 719 K
e. 977 K

2007-08-19 16:20:42 · 1 answers · asked by Anonymous in Chemistry

2007-08-19 16:20:00 · 8 answers · asked by Harry W 3 in Medicine

2007-08-19 16:18:45 · 5 answers · asked by whatthehec 2 in Mathematics

2007-08-19 16:17:31 · 6 answers · asked by Anonymous in Zoology

The for the following reaction is -70.9 kJ.

SO2(g) + 1/2 O2(g) ® SO3(g)

Given DG [ SO2(g)] = -300.2 kJ/mol, calculate DG [SO3(g)].



a. - 371.1 kJ
b. - 229.3 kJ
c. - 158.4 kJ
d. + 88.2 kJ
e. + 229.3 kJ

2007-08-19 16:17:09 · 1 answers · asked by Anonymous in Chemistry

Hi there, I hope someone out there has an answer, I have heard different theories, but I'm not sure which one is correct.
I was in Peru when the Earthquake happened and I saw lighting, which I didn't know could happen during an earthquake.

2007-08-19 16:15:13 · 6 answers · asked by coolgirl 1 in Earth Sciences & Geology

2007-08-19 16:14:13 · 2 answers · asked by ADS 2 in Mathematics

I want to know, my friends said they may evacuate but I don't think it will affect us.
Here is a link of our location.
http://en.wikipedia.org/wiki/Image:TXMap-doton-ElCampo.PNG

2007-08-19 16:11:45 · 3 answers · asked by fun20me 1 in Weather

2007-08-19 16:11:25 · 10 answers · asked by Sidereal Hand 5 in Astronomy & Space