Science & Mathematics - 26 September 2006

2006-09-26 14:08:53 · 7 answers · asked by mysol v 1 in Mathematics

A FEW MINS AGO WE WERE COMING HOME FROM DINER AND WE SAW A BIG LIGHT IN THE SKY IT LOOKED LIKE A FIRE BALL AND THEN WENT AWAY THEN IT CAME BACK AGAIN AND THEN WENT AWAY AGAIN WHAT WAS IT? FREAKED OUT

2006-09-26 14:07:43 · 5 answers · asked by AMY H 1 in Astronomy & Space

If the speed of light is equal to "c" and you are traveling in the same direction as the beam of light at speed "x" then shouldn't the speed of light you're observing be equal to "c-x"? I know it's not and that "c" is constant regardles of the speed of the observer but why?

2006-09-26 14:06:45 · 5 answers · asked by rubenff2000 1 in Physics

I red that the gravitational waves travel with speed of light, but it is not included in the electromagnetic spectrum. Do these waves has any frequencies as well?

2006-09-26 14:06:34 · 6 answers · asked by Anonymous in Astronomy & Space

I am a science teacher

2006-09-26 14:06:23 · 3 answers · asked by Anonymous in Other - Science

I have a grade 11 Biology assignment, where me and my group have to figure out if indeed yeast breaks down glucose to produce ethanol and carbon dioxide. I just need to know how to prove this in an experiment.

2006-09-26 14:05:19 · 4 answers · asked by I_Need _Answers 1 in Biology

vertebrates and invertebrates

2006-09-26 14:03:26 · 17 answers · asked by Nik J 1 in Biology

2006-09-26 14:02:47 · 1 answers · asked by pubic gnome 1 in Medicine

I know dry ice sublimates directly into a gas and therefore does not go through the liquid phase/ However, does it exist in a liquid state? Perhaps under pressure?

2006-09-26 14:02:14 · 3 answers · asked by Anonymous in Other - Science

2006-09-26 14:01:23 · 5 answers · asked by Anonymous in Astronomy & Space

One name is drawn and replaced. A second name is drawn. What is the probability that both named drawn are girls' names?
A. 1/78
B. 42/121
C. 49/121
D. 49/16

Can someone explain how to get an equation out of all the mumbo jumbo? :S

2006-09-26 13:59:30 · 8 answers · asked by Madcat 2 in Mathematics

2006-09-26 13:56:13 · 3 answers · asked by Anonymous in Biology

If a current of one or two-tenths of an ampere were to flow into one of your hands and out the other, you would most likely be electrocuted right? But, if the same current were to flow into your hand and out the elbow above the same hand, you could survive, even though the current might be large enough to burn your flesh. Why is this??

2006-09-26 13:51:30 · 5 answers · asked by MegN 1 in Physics

I'm in bio and i'm like the only freshman in there bc our states laws changed so now we skip earth science like all the freshman in the past have so yeah... what is the mass number of hydrogen? Mass is like the number of neutrons added right? And all there is in an atom is the one proton and electron... so is it zero??? please help!!!!

2006-09-26 13:48:56 · 7 answers · asked by Anonymous in Biology

What are the three consecutive odd integers such that three times the first plus four times the second minus the third is 202.

2006-09-26 13:47:52 · 10 answers · asked by Anonymous in Mathematics

Some people say there is no end to space and time. If something is without end, how do we know?
ps. endless nagging from the missus don't count!

2006-09-26 13:47:21 · 16 answers · asked by Polo 7 in Astronomy & Space

2006-09-26 13:46:54 · 4 answers · asked by Katie D 1 in Biology

Which would do LESS damage...plugging a 110-V appliance into a 220-V circuit or plugging a 220-V appliance into a 110-V circuit?

2006-09-26 13:46:24 · 7 answers · asked by MegN 1 in Physics

2006-09-26 13:46:19 · 6 answers · asked by Snickers 3 in Chemistry

Just wondering if we have been getting smaller over the years or larger?

2006-09-26 13:46:13 · 4 answers · asked by DallasGuy 3 in Other - Science

2006-09-26 13:42:33 · 5 answers · asked by cookie_20042005 1 in Mathematics

Freckles are dominant over no freckles. Both a Man and a Woman are heterozygous for freckles. Predict the Genotype and Phenotype

2006-09-26 13:42:09 · 4 answers · asked by Kurt 3 in Biology

2006-09-26 13:40:36 · 9 answers · asked by isabelli96 2 in Mathematics

2006-09-26 13:39:30 · 8 answers · asked by Anonymous in Biology

im studying cells in bio 11 and i have a question my teacher couldnt answer me.

the plasma membrane of the cell is composed of phospholipids (fats, proteins and more molecules) and is SEMI-pearmable, which means things can go in and out of the cell, but heres my question:

if a cell membrane were completely permeable, how would this affect the cell?

I would like a lot of info but please keep it simple so a grade 11 could understand it. THIS IS NOT HOMEWORK for the people that will be saying "SO UR QUESTIONG IS "WILL U DO MY HOMEWORK PLEASE?""

2006-09-26 13:38:12 · 4 answers · asked by Anonymous in Biology

It would be better if you gave me more than 7.

2006-09-26 13:35:34 · 7 answers · asked by FallOutGirl 2 in Earth Sciences & Geology

Say you have a problem like..

3x+2=y
2x+11y=3

Now i know you need to get the variables lined up in order to do that. Now would it be just the same thing like switching the variables and keeping the signs? or would you be changing the sings.. This is what i did.. let me know if im right.

3x+y=2
2x+11y=3

Or would it be something like...

3x-y=-2
2x+11y=3


Let me know.. not looking for what x and y equal.. Just how you would start out to solve it.

2006-09-26 13:32:19 · 8 answers · asked by Rachel 1 in Mathematics

a) 0.0200 mole AL and 0.0600 mole Cl

b) 0.0800 mole Ba, 0.0800 mole S, and 0.320 mole O

It would be nice if tell me some tips to write this kind formula.

2006-09-26 13:29:42 · 3 answers · asked by hetrp 1 in Chemistry

2006-09-26 13:27:56 · 6 answers · asked by csbw 1 in Mathematics

2006-09-26 13:27:40 · 9 answers · asked by Anonymous in Physics