Science & Mathematics - 26 October 2007

2007-10-26 06:54:07 · 5 answers · asked by Satish S 1 in Earth Sciences & Geology

Which has greater bond lengths: NO2- or NO3-? Explain.

2007-10-26 06:50:51 · 1 answers · asked by tay 3 in Chemistry

2007-10-26 06:50:12 · 7 answers · asked by abel13111 2 in Physics

Pls answer my ques..
What is the locus of a variable point P(t + 1/t, t - 1/t)??

2007-10-26 06:49:54 · 3 answers · asked by Jo_007 1 in Mathematics

I was on Paxil 10mg's for a month and had some side effects so the doctor switched me to Lexapro 20mg's. He said they were the same type of drug so switching wouldn't cause problems. Well a few day after I switched I started getting chills and felt really crappy. I've since cut my lexapro down to 10mg's(20 seemed too strong) and feeling better. Anybody else had this happen? I think the doc was full of !@#$

2007-10-26 06:49:18 · 2 answers · asked by bizzie 2 in Medicine

You always see tornadoes hitting the country so I was just wondering why dont tornadoes hit like Detroit, Chicago, Indy, etc.... all your major cities in states where tornadoes hit. Is it because of the tall buildings messing with the air or what?

2007-10-26 06:44:16 · 19 answers · asked by Marshall 5 in Weather

2007-10-26 06:40:44 · 4 answers · asked by ★→Damian←★ 4 in Weather

I thought they should not make a reaction cause Cu is lower on the activity series than Fe, as with I2 and H.

2007-10-26 06:40:32 · 1 answers · asked by kooldogy88 1 in Chemistry

How do I show that every group with identity e and the fact that x*x=e for all x in G is abelian

2007-10-26 06:34:38 · 2 answers · asked by Y1083 1 in Mathematics

F(x)= x-5 / x+2

2007-10-26 06:34:22 · 2 answers · asked by Anonymous in Mathematics

2007-10-26 06:32:24 · 24 answers · asked by Anonymous in Astronomy & Space

F(x)= (x-5)^6 (x-3) (x+4)^3

2007-10-26 06:32:08 · 2 answers · asked by Anonymous in Mathematics

2007-10-26 06:28:57 · 4 answers · asked by suman 2 in Chemistry

2007-10-26 06:27:53 · 12 answers · asked by Anonymous in Earth Sciences & Geology

ok ive doing fine on equations but when it came to these word problems...i need help!

The spread of Virus is modeled by the following function w/ respect to t=time=days; V(t)= -t^2+5t-7 where V(t) is the number of people since the first reported viral case was observed. use the "formal definition" of a derivative to find d/dt (V)(t)

thanks guys i appreciate any help!

2007-10-26 06:26:23 · 4 answers · asked by jasmine 2 in Mathematics

Find a cubic polynomial with real coefficients having roots x = 5 and x = -3i. Assume a lead coefficient of 1.

2007-10-26 06:24:53 · 2 answers · asked by Anonymous in Mathematics

12x^2-17x-5 / 4x+1

2007-10-26 06:23:39 · 4 answers · asked by Anonymous in Mathematics

2007-10-26 06:23:29 · 4 answers · asked by Anonymous in Biology

F(x)= x^2-4 / x

2007-10-26 06:22:25 · 1 answers · asked by Anonymous in Mathematics

I understand it is going to be used to conduct experipments.but is all the cost for the space program,worth it?

2007-10-26 06:19:52 · 11 answers · asked by Anonymous in Astronomy & Space

F(x)= 2x^2-x+5 / x^2+1

2007-10-26 06:19:28 · 2 answers · asked by Anonymous in Mathematics

the battery bank is 20 batteries 12V 200amps each, connected in parallel.
Thanks.

2007-10-26 06:19:07 · 4 answers · asked by elkattanmohamed 1 in Engineering

Find the zeroes of the polynomial using any combination of the rational roots theorem, synthetic division, testing for 1 and -1, and/or the remainder and factor theorems.

P(x)= 2x^4+x^3-20x^2-13x+30

2007-10-26 06:18:00 · 2 answers · asked by Anonymous in Mathematics

given a=12 b=13 c=5

have to find alpha, beta, gamma

please help me, I don't know how to do this without any angles given!! It you could show me step by step what you did, so I can follow along that would be great!! thanks

2007-10-26 06:17:03 · 2 answers · asked by Anonymous in Mathematics

and would a percipitate form??

2007-10-26 06:15:12 · 4 answers · asked by Ash and june 2 in Chemistry

A belt connects a pulley of radius 8 centimeters to a pulley of radius 6 centimeters. Each point on the belt is traveling at 24 centimeters per second. Find the angular velocity of each pulley

picture available here http://i240.photobucket.com/albums/ff163/aari07/num3.jpg

2007-10-26 06:12:49 · 2 answers · asked by Princess 2 in Mathematics

2007-10-26 06:09:32 · 14 answers · asked by Anonymous in Zoology

i cant stand spiders...the way that their legs' level is higher than their bodies...the way that they move sideways and can travel so fast...

2007-10-26 06:07:46 · 15 answers · asked by Anonymous in Zoology

BENZEN (C6H6)
Melting Point: 5.5C
Boiling Point: 80C
Hf: 127J/g
Hv: 551 J/g
Sample Size: 100g
Sp. Heat (solid): 1.5 J/gC
Sp. Heat (liquid): 17 J/gC
Sp. Heat (gas): 1.0 J/gC
Rate of heating: 400 J/min

How much heat is required to melt the sample at the melting point?
How much heat is required to boil the sample at the boiling point?
How much heat is required to raise the temperature of the sample from 20°C below melting point to the melting point?
What is the difference in temperature between melting point and boiling point?
How much heat is required to raise the temperature of the sample of the liquid phase from the end of melting to the beginning of boiling?
How much heat is required to raise the temperature of the sample of the gas phase from the end of boiling to 20°C above the boiling point?

I need equations, you don't have to do the work!

2007-10-26 06:07:23 · 2 answers · asked by Anonymous in Chemistry

Ok i need to know how to right a equation that will represent the parabolic motion of a catapult!!!! Or the parabolic motion of the projectile that comes out of a catapult

If your not quite sure about my project go here and read anything that talks about waterfountain project or projectile motion
http://www.abhs.k12.nm.us/classes/Math/Stacey/11th%20Grade/Staceys11thGrade.htm

2007-10-26 06:03:33 · 2 answers · asked by BlahBluhBlahBluhBlah 2 in Physics