Science & Mathematics - 27 November 2006

2006-11-27 10:18:05 · 2 answers · asked by xxx 2 in Mathematics

2006-11-27 10:17:51 · 4 answers · asked by cindy61892 2 in Biology

There is a head on collision. I need to prove relative veolcity after the collision is equal & opposite to the relative velocity before it. (working only in 1-D) I want to show v1-v2 = - (v1'-v2'). How do I get started?

2006-11-27 10:14:31 · 2 answers · asked by eeje2003 1 in Physics

2006-11-27 10:14:19 · 7 answers · asked by Beccabee. 2 in Mathematics

1)is parallel to y=2x+6 and goes through (3,5)
2)is parallel to 3x+2y=8 and goes through (0,6)
3)is perpendicular to y=1/3x-8 and goes through (2,6)

2006-11-27 10:14:12 · 4 answers · asked by airwalkinrootbeer 2 in Mathematics

Simplify : cot^(2)x / cscx - 1

Prove the identity: cos^(4)x - sin^(4)x = cos(2)x-sin^(2)x



Please Help i really need the answers and steps. I am a little confused. Thanks

2006-11-27 10:13:00 · 2 answers · asked by Anonymous in Mathematics

the number of minutes of a cell phone call and the strength of the cellular telephone battery

Answers:
positive
negative
relative
none

2006-11-27 10:12:19 · 4 answers · asked by ginger b 1 in Mathematics

1)y=2x+6
y-8x=21

2) 4x-4y=4
x-y=1

3) 4x+2y=5
x-2y=9

4) none

2006-11-27 10:10:04 · 5 answers · asked by ginger b 1 in Mathematics

2006-11-27 10:10:04 · 25 answers · asked by Sweetpea 3 in Zoology

2006-11-27 10:09:25 · 10 answers · asked by Anonymous in Mathematics

I'm in Vancouver, and it's snowing like CRAZY outside. It's basically a blizzard, and because of this and the holiday season, I wanted to know what everyone thinks of snow. Is it tons of fun or just something you have to struggle your car through?

2006-11-27 10:09:22 · 14 answers · asked by serena b 2 in Weather

2006-11-27 10:08:52 · 4 answers · asked by v_tashkova 1 in Mathematics

hey everyone ive got some physics probs that i need answers too to study from in the future, i tried scanning the page but it didnt work properly so i made them all up on paint, i did the best i could so try and work with it =]

thanksss in advance

links:

1. http://i34.photobucket.com/albums/d130/MATTRAINES/q2.jpg?t=1164668205

2. http://i34.photobucket.com/albums/d130/MATTRAINES/q3.jpg?t=1164668225


3. http://i34.photobucket.com/albums/d130/MATTRAINES/q4.jpg?t=1164668264


4. http://i34.photobucket.com/albums/d130/MATTRAINES/q5.jpg?t=1164668771

2006-11-27 10:06:54 · 2 answers · asked by PAT R 2 in Physics

2006-11-27 10:06:46 · 2 answers · asked by dimachevelle 2 in Mathematics

2006-11-27 10:06:33 · 4 answers · asked by ƒGƒ“ƒz ƒ 1 in Biology

ok this really stupid my sister doesn't know this problem and my parents said i can't tell her so she wants me to ask all of u something times something equals 78

2006-11-27 10:05:47 · 6 answers · asked by bbgurl5036 2 in Mathematics

Fe^(3+) + SCN^(-) <---> [Fe(SCN)]^(2)

Tube 1 2 3 4 5 6 7 8 9
mL Fe(3+) [0.0] [1.0] [2.0] [2.5] [3.0] [3.5] [4.0] [5.0] [6.0]
mL SCN(-) [6.0] [5.0] [4.0] [3.5] [3.0] [2.5] [ 2.0] [1.0] [0.0]

can I find the concentrations?

Tube 1 2 3 4 5 6 7 8 9
absorbance 0 .420 .629 .658 .629 .509 .444 .260 0
[Fe(3+)] [ 0 ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
[SCN(-)] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ 0 ]

How do I find it? I searched my notes and books and emailed prof... please help

2006-11-27 10:05:05 · 1 answers · asked by Myra G 5 in Chemistry

i love mine. i still bounce on it lol. im 29 and still find my best mates are kids. no grown up bullsit., whoi else can play inlife (NO INUENDO PZ) . How about banning cars and replacing with space hoppers. the red ones!!!! the 1's big and round, anyone fancy a race?? if u got one :).......be prepared to lose tho'!!!!!!

2006-11-27 10:04:50 · 7 answers · asked by elephants_foot29 1 in Astronomy & Space

if car 2 came to a stop in 15 seconds how much power in (watts) did it take to stop car 2 at the stop sign by applying force to the brakes?

Can someone PLEASE show me how to figure this problem out. Help would be greatly apperciated.

2006-11-27 10:03:30 · 4 answers · asked by Lizzie 5 in Physics

I need this to be realllllllllllllllllllllllllllllllllly creative, please. :) It also has to be a real life relationship. Please, help!

2006-11-27 09:59:14 · 4 answers · asked by rottenbanana0007 2 in Mathematics

2006-11-27 09:58:11 · 5 answers · asked by THE UNKNOWN 5 in Medicine

2006-11-27 09:55:30 · 5 answers · asked by Helen L 1 in Biology

Like in a math equation. How many combinations of pennies, nickels, and dimes. Thanks for your help!

2006-11-27 09:52:03 · 10 answers · asked by Anonymous in Mathematics

A balloon contains 3.7 liters of nitrogen gas at a temperature of 87 K and a pressure of 101 kPa. If the temperature of the gas is allowed to increase to 24 C and the pressure remains constand, what volume will the gas occupy?

2006-11-27 09:49:38 · 4 answers · asked by AnnaQ 1 in Physics

y=x+2
y=3x

Answers:
1,3
0,0
3,1
1/3,1

2006-11-27 09:48:17 · 10 answers · asked by Anonymous in Mathematics

2006-11-27 09:46:03 · 8 answers · asked by camarodude005 1 in Astronomy & Space

I was given a seven day course of four tablets...which should've ended tonight...however me being me kept forgetting to take the tablets and ive got 7 tablets left...should i continue to take them or should i discard them?

2006-11-27 09:45:31 · 5 answers · asked by Rukiya 2 in Medicine

My friend and I walked along a pavement on a wet day. The rainbow went from infront of us, like a flyover , up into the sky and around to our right. I thought it was nice, but was told weeks later by a pal that you can't be at the end of a rainbow. If thats true, I will just have to accept it. I find it strange that my friend and I saw the same 'unreal' rainbow. We hadn't been drinking!

2006-11-27 09:45:30 · 10 answers · asked by ineedtoknow 1 in Weather

2006-11-27 09:44:30 · 4 answers · asked by dorkface512 2 in Astronomy & Space

why is it desirable to know the exact concentration of solutions rather than whether they are concentrated or dilute ?????

2006-11-27 09:43:41 · 3 answers · asked by beauty mirna 3 in Other - Science