Science & Mathematics - 7 October 2006

Why is that?

2006-10-07 11:01:33 · 4 answers · asked by franco5 2 in Biology

just wanted to help my nephew with some homework..help greatly appreciated=)

2006-10-07 10:57:39 · 3 answers · asked by matt s 1 in Biology

2006-10-07 10:53:33 · 13 answers · asked by Anonymous in Earth Sciences & Geology

CI(aq) + NaBr(aq) --> NaCI(aq) + Br2(aq)

CaF2(s) + H2SO4(aq) --> CaSO4(s) +HF(g)

CI(g) + NaOH(aq) --> NaOCI(aq) + NaCI(aq) + H2O(l)

2006-10-07 10:50:25 · 3 answers · asked by Anonymous in Chemistry

find the next three terms in the sequence : 3125, 625, 125, 25. and how did u find them?thanx to the people that answer my question... =]

2006-10-07 10:49:17 · 9 answers · asked by Anonymous in Mathematics

2006-10-07 10:46:03 · 5 answers · asked by Anonymous in Chemistry

2006-10-07 10:45:24 · 6 answers · asked by redalert 2 in Chemistry

2006-10-07 10:43:56 · 2 answers · asked by Tarshall J 1 in Biology

For example: If I see a full moon tonight does that mean people in other parts of the world will be seeing a full moon that night as well? Also.. What causes phases of the moon?

2006-10-07 10:43:32 · 14 answers · asked by AhSjilol5 2 in Astronomy & Space

2006-10-07 10:43:05 · 5 answers · asked by redalert 2 in Chemistry

What are some basic ways I can improve my math skills without doing a ton of extra problems? (Like crossword puzzles improve lingual skills, what's the math version of that?) I'd really like an easy, fun way to do so. Thanks!

2006-10-07 10:40:56 · 56 answers · asked by Silver Snake 4 in Mathematics

OK, I know the speed of light in vacuum, and the speed sound in a given medium. But if I had (say) 1km of wire, a BIG battery, light bulb and a switch connected in series (or slightly more technical version thereof). How long after closing the switch would it take for the bulb to light? Doubtless it depends on the voltage?? But say with these old transatlantic cables there must be some measureable delay?? Just wondered? any thoughts?

2006-10-07 10:39:11 · 19 answers · asked by Anonymous in Physics

this is for a science fair project. i have to do 5 examples of research

2006-10-07 10:37:57 · 11 answers · asked by no one really knows 1 in Other - Science

2006-10-07 10:37:51 · 8 answers · asked by martin48732 1 in Physics

will not change velocity when it hits the pins? true or false

2006-10-07 10:31:29 · 7 answers · asked by Anonymous in Physics

can be explained by Archimedes' principle? True or False

2006-10-07 10:29:25 · 9 answers · asked by Anonymous in Physics

2006-10-07 10:27:10 · 3 answers · asked by john s 1 in Weather

2006-10-07 10:25:45 · 7 answers · asked by petey1jo 1 in Other - Science

I'm trying to do this with a naked eye. I know that females are larger than males. But I can't remember if the males have a larger darker band on their bodies or females.

2006-10-07 10:22:57 · 5 answers · asked by smarties 6 in Biology

someone please help me. i don't understand this to this extent. x.x

There are five balloons: CO2, O2, He, N2, CH4
Each are filled to the same volume at 25°C and 1.0 atmosphere pressure wit hthe pure gas indicated.
A. Which balloon contains the greatest mass of gas? explain.
B. Compare the average kinetic energies of the gas molecules in the balloons. Explain.
C. Which balloon contains the gas that would be expected to deviate most from the behavior of an ideal gas? Explain.
D. Twelve hours after being filled, all the balloons have decreased in size. Predict which balloon will be the smallest. Explain your reasoning.

i think i know how to do a little bit of it and i started to, but can i compare answers with someone on this? >.<
thanks to anyone who can help. :]

here are more gas doozies for those who like gases A LOT:
http://answers.yahoo.com/question/?qid=20061007134740AAoN4c6
AND
http://answers.yahoo.com/question/index;_ylt=AvOqVYuR7AfTqazikYw6ET3sy6IX?qid=20061007141425AAlPir

2006-10-07 10:21:18 · 4 answers · asked by sooper mouse! 2 in Chemistry

a- the same number of protons in their nuclei
b- the same number of electrons in their outer energy levels
c-the same number of neutrons in their nuclei
d- all the above

2006-10-07 10:18:33 · 4 answers · asked by Anonymous in Chemistry

i need to make a sophmore (biology) level cell model what would be a few ideas for this?

2006-10-07 10:17:39 · 1 answers · asked by a p 1 in Biology

Observations about real gases can be explained at the molecular level according to the kinetic molecular theory of gases and ideas about intermolecular forces. Explain how each of the following observations can be interpreted according to these concepts, including how the observation supports the correctness of these theories.
A. When a gas-filled balloon is cooled, it shrinks in volume; this occrus no matter what gas is originally placed in the balloon.
B. When the balloon described in [A] is cooled further, the colume does not become zero, rather, the gas becomes a liquid or solid.
C. When NH3 gas is introduced at one end of a long tube while HCl gas is introduced simultaneously at the other end, a ring of white ammonium chloride is observed to form in the tube after a few minutes. This ring is closer to the HCl end of the tube than the NH3 end.
D. A flag waves in the wind.

i just don't understand the wording of what they're looking for. :/
thanks in advance to anyone who can help!

2006-10-07 10:14:25 · 3 answers · asked by sooper mouse! 2 in Chemistry

The probability of success is .15 for each trial. (a) What is the probability of success after 3 trials. (b) How many attempts should realistically be made to ensure success.

(a) I'm thinking p=.15 and q=.85
p(X=3)=(.85)^3 * .15 =.092

(b) E(X) = 1/p = 1/.15 = 7

The numbers don't seem to check out! Help (with explanation) will be appreciated! Thanks!

2006-10-07 10:13:50 · 4 answers · asked by Anonymous in Mathematics

plz. this Q.is relating 2 forensic medicine, the body of the victim showed features of neck violence.

2006-10-07 10:11:32 · 1 answers · asked by eltab3y 1 in Medicine

2006-10-07 10:07:35 · 6 answers · asked by Shawnta E 1 in Earth Sciences & Geology

2006-10-07 09:59:22 · 2 answers · asked by valerie cortez 1 in Mathematics

I'm doing a project ,and I want to know Why were airbags invented?

2006-10-07 09:55:21 · 9 answers · asked by Anonymous in Other - Science

It came up in a question on the Lottery gameshow just now. Anyone have an idea?

2006-10-07 09:52:03 · 4 answers · asked by Don't Panic 4 in Zoology

a. Was the higher good served?
b. Decide what the "higher good" is?

2006-10-07 09:51:35 · 2 answers · asked by thelmadc06 1 in Other - Science