Science & Mathematics - 10 January 2007

The tree's common name starts with a "U".

http://img.photobucket.com/albums/v11/TiDoubleG3RR/U.jpg

2007-01-10 14:02:25 · 4 answers · asked by David M 1 in Botany

For example, how would you find the charge of Au, and why/how? Thanks!

2007-01-10 14:01:19 · 2 answers · asked by little secrets † 2 in Chemistry

2007-01-10 14:00:28 · 5 answers · asked by Anonymous in Physics

help plez

2007-01-10 14:00:11 · 2 answers · asked by Peace Love Life :) 3 in Geography

using these three variable can anyone solve this 3x3 system using linear inequalities???

2007-01-10 13:58:39 · 5 answers · asked by princess 1 in Mathematics

If anyone can answer this question correctly, I will get them 20 points including getting their answer picked as best answer.
Here is the math question.

There is a bag of money.

there are only nickels, dimes, and pennies in the bag;

3/7 of the coins are pennies;

20% of the coins are pennies;

13 of them are nickels.

How much money is in the bag?

2007-01-10 13:57:56 · 8 answers · asked by Anonymous in Mathematics

I have a question on my hw that wants me to simplify the equation: the cubed root of 6 minus the square root of 6. Can this be done, and if so how?

2007-01-10 13:57:39 · 2 answers · asked by angel ballerina 2 in Mathematics

2007-01-10 13:57:39 · 1 answers · asked by nadia 2 in Engineering

Two identical flasks are filled with different gases; both the the flasks are maintained at the same pressure and temperature. The mass of has A is 0.340-g, while the mass of gas B is 0.480-g. Gas B is ozone, O3. Is gas A oxygen, sulfur dioxide or dihydrogen sulfide?

I know that I should probably have to find moles so I divided 0.340g by the molar mass of oxygen, sulfur dioxide, and dihydrogen sulfide, and got...
O=.02124mol
SO2=.0053mol
H2S=.00997mol

I'm really not sure where to go from there

2007-01-10 13:56:53 · 2 answers · asked by Kim L 1 in Chemistry

what are those really dumb animals that spontaneously run off of cliffs?

2007-01-10 13:55:38 · 14 answers · asked by Adam 1 in Zoology

2007-01-10 13:54:23 · 8 answers · asked by Anonymous in Astronomy & Space

Using an ideal pulley system, how much work is done by lifting a load 40m with a force of 220N?

2007-01-10 13:53:43 · 1 answers · asked by Brenda B 1 in Physics

...diamond has slightly different refractive indices for each of the colors of the spectrum?

2007-01-10 13:51:28 · 3 answers · asked by Anonymous in Physics

1/4 (20 - x) < 6


Please show me what you got and how you got it?

2007-01-10 13:50:59 · 7 answers · asked by Anonymous in Mathematics

hi, i have a question about crop circles. i dont cut the grass as much as i should, and lately it was getting real tall. today when i finally decided enough was enough and got out the push mower from the shed, i noticed some real weird patterns in the grass. it was like a bunch of eccentric circles, one inside another, with dots and lines in geographic patterns arount them. mittens and mr. snickers (my two cats) been acting kind of funny anyways lately, and i'm wontering if maybe something fishy is going on back there. it's not a real big yard, but there is a tall pyramid i builded out of pvc pipe and covered up with tin foil. could that be enough to attract a space ufo?

2007-01-10 13:50:29 · 25 answers · asked by Anonymous in Paranormal Phenomena

A 150 N boy rides a 60N bicycle a total of 200m at a constant speed. The fridtional force against the forward motion of the bicycle equal 35N. How much work does the boy do ?

2007-01-10 13:49:25 · 4 answers · asked by Brenda B 1 in Physics

How can I get slope?!!!

2007-01-10 13:48:53 · 4 answers · asked by Amy Jo 1 in Mathematics

Is a scientifc hypothesis accepted if the is no way to demonstrate that the hypothesis is wrong? Please explain!! im confused..

2007-01-10 13:44:17 · 6 answers · asked by The REBELution! 3 in Chemistry

Does anyone know any memory-aid or neumonic devices that will help me remember: sin=opposite/adjacent, cos=adj/hyp, tan=opp/adj. ? any responces would be valued. thank you.

2007-01-10 13:43:55 · 7 answers · asked by Your mom goes to college 3 in Mathematics

I am trying to help my brother with a project for school, he has a disco ball like object hooked up to a DC motor. The motor is spinning it, but it spinning it to fast. It has to be run from a 1.5v D battery, so I can't lower the ammount of voltage at the source. what components could I use to slow the motor down? Also we can't use a different motor.

P.S. I'm good with electronics components so I have no problem using resistors etc...

2007-01-10 13:43:27 · 11 answers · asked by Anonymous in Engineering

Decimals . . . how do you place them from least to greatest? For example ; I have some decimals here .6207, .6154, .6 . How would I place those?

2007-01-10 13:43:23 · 8 answers · asked by ari 1 in Mathematics

Respiration in plants takes place because of photosynthesis and without photosynthesis, we would not be able to breath.

2007-01-10 13:42:51 · 6 answers · asked by Anonymous in Biology

All I know is its common name starts with "O."

http://img.photobucket.com/albums/v11/TiDoubleG3RR/O-1.jpg

2007-01-10 13:42:36 · 6 answers · asked by David M 1 in Botany

2007-01-10 13:42:32 · 4 answers · asked by Lonnie 1 in Mathematics

2007-01-10 13:41:58 · 11 answers · asked by Shenty H 1 in Other - Science

help me please

2007-01-10 13:41:22 · 2 answers · asked by Anonymous in Chemistry

2007-01-10 13:39:19 · 2 answers · asked by _cuteangel562_ 2 in Earth Sciences & Geology

My daughter really needs help solving this algebra question, it states, solve the inequality:

|4-b| <4-b

Please help!!!! Thanks

2007-01-10 13:38:48 · 6 answers · asked by Darlene L 1 in Mathematics

science class

2007-01-10 13:37:01 · 3 answers · asked by z 2 in Botany

Pertaining to my previous question on poisonous pill, I will ask it in a may be clearer way.
Weighing can only be done ONCE, using a digital scale.
All the pills are the same size, same color.
There are 10 bottles with 10 pills in each bottle.
One of the bottles contain a pill that is poisonous.
Non-poisonous pill weigh 10 gram each and poisonous pill weighs 11gram (1 gram heavier than the normal ones).
So how can you find out which bottle has the poisonous pill in it?

2007-01-10 13:36:39 · 7 answers · asked by lwc 2 in Chemistry