Science & Mathematics - 28 November 2006

2006-11-28 19:05:04 · 3 answers · asked by Yamuna 1 in Engineering

a glass laboratory flask is filled w/ gas at 25 'C and 0.95 atm pressure, sealed, and then heated to 117'C. What is the pressure inside the flask?

a ballon has a volume of 43.0 L at 20'C. What is the volume at -5'C?

2006-11-28 19:04:59 · 1 answers · asked by femylatina 1 in Chemistry

2006-11-28 19:04:34 · 6 answers · asked by Allergic To Eggs 6 in Zoology

In quadrilateral EFGH, EF is parallel to HG, measure of angle E = y+10, measure of angle F = 2y-40, and measure of angle H = 2y-31. Measure of angle G is?

2006-11-28 19:02:31 · 6 answers · asked by DookieCookie 4 in Mathematics

what is the answer to this integral? int(0, 2pi/1000) 144cos^2(1000t) dt?

2006-11-28 18:58:53 · 1 answers · asked by kwikemartemployee 2 in Engineering

2006-11-28 18:58:17 · 6 answers · asked by JoM 2 in Zoology

How many people live in Iraq?

2006-11-28 18:52:14 · 4 answers · asked by Anonymous in Geography

please help me with Descartes' Method!!!! thx~~
Find the equation of the tangent line using Descartes' Method!!! plz~ help? Make sure have to use Descartes' Method
i knows the way to do with derivative
Find the equation of the tangent line to the following functions,
using Descartes' Method.

#1 f(x) = x^2, at, (2,4)
#2 f(x) = x^3+7x, at, (1,8)
#3 f(x) = x, at, (-3,3)

Could u guys help me to get tangent line of equation above
3 problems??? have test help thx!!!

about Descartes' Method.
1. (x-xo)^2+y^2 = (x1-xo)^2+(y1)^2
substituting f(x) for y in the above equation, we get:
(x-xo)^2+(f(x))^2 = (x1-xo)^2 + (y1)^2

2006-11-28 18:41:52 · 3 answers · asked by Anonymous in Mathematics

How many kilograms of a cashew nuts worth $6.60 a Kg must be mixed with 10 Kg of pecans worth $8.50 a Kg to make a mixture worth $7.10 a Kg?

2006-11-28 18:41:29 · 5 answers · asked by ☢☠☣☢☠☣ 3 in Mathematics

2006-11-28 18:36:36 · 4 answers · asked by Anonymous in Other - Science

2006-11-28 18:36:06 · 1 answers · asked by Anonymous in Medicine

2006-11-28 18:34:45 · 13 answers · asked by rami d 1 in Biology

So I've got all these polyhedral dice for role playing games. I can use classical statistics to calculate quite easily the assumed uniform distribution for a single die roll, and what the mean is.

Now if I roll the same die several times, and add the results, the probability for any particular number starts to form a bell shaped curve.

For example, if I roll a six-sided die three times, there would be a sort of bell shaped curve, with 10.5 being the mean, with 3 and 18 being the extremes.

It seems to me that I should be able to calculate the standard deviation for these sort of bell shaped curves without too much trouble, but our statistics teacher thinks the only way to do it is to roll the dice about a billion times, and go through these complicated equations for each individual roll. Isn't there an easier way?

2006-11-28 18:33:46 · 4 answers · asked by ye_river_xiv 6 in Mathematics

meaning,defination,facts on tsunami,causes,areas prone to tsunami on a map,after effects of tsunami,precautions can be take before & after tsunami and some pictures related to tsunami. plz help me it is urgent

2006-11-28 18:31:23 · 8 answers · asked by Anonymous in Geography

can you find the measurements of two triangle angles when you only have one angle measurement?

2006-11-28 18:31:00 · 4 answers · asked by Licia 3 in Mathematics

http://i107.photobcket.com/albums/m295/halfxhearts/math.png

It's all in the picture. You don't have to write out all the steps, just tell me how to find if a line is a perpendicular bisector.

2006-11-28 18:30:21 · 2 answers · asked by DookieCookie 4 in Mathematics

Could a grapple gun pull at least 200 pounds like in the movies?

2006-11-28 18:30:09 · 4 answers · asked by credlec 1 in Engineering

FIND ITS VELOCITY AND DISPLACEMENT AFTER 3.0 SECONDS?SHOW YOUR SOLU
TION

2006-11-28 18:29:02 · 4 answers · asked by Anonymous in Physics

What about killing fields??
Is there a time??
What about all the things
That you said was yours and mine...??
Did you ever stop to notice??
All the blood we've shed before
Did you ever stop to notice??
The crying Earth the weeping shores???

2006-11-28 18:24:44 · 7 answers · asked by KO 3 in Weather

Chemical equations for reaction is needed.

2006-11-28 18:23:40 · 1 answers · asked by sun2001hi 1 in Chemistry

Need a time... Thank you!

2006-11-28 18:21:04 · 7 answers · asked by maisie24 3 in Weather

i m in the 10th std

2006-11-28 18:20:45 · 9 answers · asked by vidhi j 2 in Astronomy & Space

Can someone write that out in numbers?

2006-11-28 18:17:59 · 5 answers · asked by beast 1 in Other - Science

I am 31 years old.

That's with medication. I had preeclampsia when I was pregnant with my daughter (she's 16 months now) and have had hypertension every since.

Just before delivery of my daughter my BP was 200/110.....no joke! I had her six weeks early via emergency c-section. I, too, was on medication for hypertension, the same that I am now, when I was pregnant.

2006-11-28 18:17:54 · 3 answers · asked by Mom of One in Wisconsin 6 in Medicine

2006-11-28 18:17:10 · 5 answers · asked by Anonymous in Other - Science

Is there anyone who can give me an example of a continuous function f: R-->R such that |f(x) − f(y)| < |x − y| for all x and y in R (x not equal to y) but such that f has no fixed point.

2006-11-28 18:17:03 · 4 answers · asked by Jenny 1 in Mathematics

Got stuck on this in my revising!
An aqeous solution of bomine was added to an aqueous solution of chloride ions and also to an aquous solution of iodide ions.

State what you would see in each case, inlcude an equation for any chemical reaction that takes place, and explain the trend shown by these observations.

Thanks,
Harry

2006-11-28 18:12:33 · 5 answers · asked by Anonymous in Chemistry

DUPLE X SS ,SS316L,TITANIUM,ALUMINIUM-BRONZE,
HAST ALLOY ,904L ETC

2006-11-28 18:09:18 · 4 answers · asked by edasinga mathappan 1 in Chemistry

2006-11-28 17:58:53 · 6 answers · asked by IA 1 in Engineering

I anodize aluminium metal first electricaly. Wash it with D.M water & then dipping it in a warm colored aqueous bath. Porous anodized oxide film is dyed by this aq. organic or inorganic compounds. What is this compound?

2006-11-28 17:55:35 · 1 answers · asked by palash_koley 1 in Chemistry