Science & Mathematics - 30 September 2007

If not,what are they? can someone tell me more about them?

2007-09-30 20:58:04 · 8 answers · asked by Anonymous in Chemistry

2007-09-30 20:49:40 · 3 answers · asked by manju 1 in Physics

Does that even make sense? Or is my immune system knocked out so badly that it wont react to the vaccine?

2007-09-30 20:22:01 · 2 answers · asked by Eva O 1 in Medicine

H (x) = (4 x^2 + 5 x^-4 )^3

H ' (x) =

2007-09-30 20:21:00 · 2 answers · asked by Rrrr0001 1 in Mathematics

into my roledex?

2007-09-30 19:58:47 · 6 answers · asked by Anonymous in Medicine

2007-09-30 19:57:26 · 7 answers · asked by Anonymous in Geography

2007-09-30 19:49:06 · 4 answers · asked by Ruby 1 in Biology

A box of books weighing 320 N is shoved across the floor of an apartment by a force of 430 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move the box 4.10 m, starting from rest?

2007-09-30 19:43:00 · 2 answers · asked by Anonymous in Physics

lying in the xy plane

2007-09-30 19:28:08 · 4 answers · asked by shygl409 2 in Physics

than the width. please help with this problem

2007-09-30 19:14:00 · 6 answers · asked by ShullyR 1 in Mathematics

*how long does it take to complete a revolution? on earth n jupiter.
*what type of rotation does mars and venus have...
please i need help its due tomarrow n i cant seem to find these two questions since 2hours.

2007-09-30 19:06:14 · 3 answers · asked by .sad0n3. 1 in Astronomy & Space

2007-09-30 18:55:02 · 8 answers · asked by tomas redlow 1 in Other - Alternative

2007-09-30 18:48:23 · 1 answers · asked by JOJO E 1 in Engineering

First, look up that "answered" riddle. So first, there is no method for giving a 100% chance of survival for the first prisoner to guess. His chances are always 50/50. What he can do, is pass information forward. But what information would be useful to ALL 99 other prisoners? None of the answers work yet.

It would be agreed that the last man in line would count the number of hats. If he saw and odd number of black hats, he would say his was black. If he saw an even number of black hats, he would answer white. They agree to this. He gives his answer and 50/50 is freed or not. Working forward, the next prisoner in line can then count black hats. If he sees a number that is opposite (as in odd vs even) to what the rear-most man reported, then he knows he has a black hat. Each person would then keep track of each time a person reported a black hat and would switch what their guess would be when it gets to them back and forth. Try it with 5 prisoners to see it work.

2007-09-30 18:48:16 · 4 answers · asked by Steve Euclid Gillberg 1 in Mathematics

2007-09-30 18:47:39 · 5 answers · asked by Anonymous in Mathematics

The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers. In the women's competition, the end of a typical launch ramp is directed 58° above the horizontal. With this launch angle, a skier attains a height of 12 m above the end of the ramp. What is the skier's launch speed?

2007-09-30 18:46:54 · 1 answers · asked by Anonymous in Physics

2007-09-30 18:45:10 · 3 answers · asked by Brandon 1 in Chemistry

human skin. anat and phys.

2007-09-30 18:35:27 · 4 answers · asked by Anonymous in Biology

If you were the teacher of a 5th grade classroom. How would you teach them the Pythagorean Theorem concept to students?
What type of manipulatives would you use ?

2007-09-30 18:25:32 · 6 answers · asked by Jeff 1 in Mathematics

2007-09-30 18:25:17 · 4 answers · asked by Anonymous in Chemistry

Bombay is called Mumbai and Madras is Chennai, then why is Burma still Burma and not Myanmar?
And, can sp,epne tell me the name of the capital? I've heard Rangoon (Yangon?), and Rangoon referred to as the financial capital and very annoyingly, as the former capital bit I have yet to hear or read the name of the present capital.

2007-09-30 18:22:55 · 5 answers · asked by cymry3jones 7 in Geography

2007-09-30 18:21:02 · 3 answers · asked by Anonymous in Engineering

A compound has the empirical formula CHCl. A 256-mL flask, at 373 K and 750 torr, contains 0.800 g of the gaseous compound. Give the molecular formula.

256 mL = .256 L, 373 K, 750/760 = .987 atm

PV = nRT = (.987)(.256) = n(.08206)(373) ---> n = .008 mols

CHCl, MW = 48.648 g/mol ---> (.80g)/(48.648 g/mol) = .016

(.016)/(.008) = 20

C20H20Cl20 = Molecular Formula.

Is this right?

2007-09-30 18:13:45 · 2 answers · asked by the Jam 2 in Chemistry

I need to find 2 consecutive odd integers whose sum is 116, and 3 consecutive even integers whose sum is 117. I have to write an equation, and solve each problem. If you could really help me I will choose you as the best answer.:)

2007-09-30 18:10:55 · 13 answers · asked by peterkarsai59 1 in Mathematics

can someone please help me and if possible give me a step by step answer

2007-09-30 18:08:45 · 2 answers · asked by joemelle k 2 in Mathematics

hi have the equation AuxOy which makes gold oxide. How do i find out how much x there is and how much y there is? i know that there is 89.15% Au in the equation.

2007-09-30 18:07:39 · 1 answers · asked by Anonymous in Chemistry

Hello everyone,
I'm doing a paper in Physics; I have to choose 3 electrical phenomena... I already picked "Static Electricity" and "Lightning," can you, please, help me find a third one?

Thanks

2007-09-30 18:05:12 · 2 answers · asked by Anonymous in Physics

the last letter is "g?"

2007-09-30 18:05:09 · 3 answers · asked by HAHA 1 in Botany

2007-09-30 18:01:05 · 11 answers · asked by Anonymous in Mathematics

2007-09-30 17:52:46 · 3 answers · asked by jade 1 in Earth Sciences & Geology