Science & Mathematics - 29 October 2006

in terms of knowledge

2006-10-29 05:37:47 · 20 answers · asked by mahan 1 in Astronomy & Space

What is a discrete random variable? I'm really having a hard time understanding the whole concept.

2006-10-29 05:37:25 · 2 answers · asked by ๑The Goddess๑ 3 in Mathematics

if neuteal is return path, how is it safe to touch unless under fault conditions

2006-10-29 05:37:11 · 13 answers · asked by Anonymous in Physics

2006-10-29 05:36:59 · 2 answers · asked by aum 3 in Geography

why do bees make that sound hmmmmmm?

2006-10-29 05:35:32 · 32 answers · asked by [[George]] 1 in Zoology

question stated above

2006-10-29 05:34:21 · 10 answers · asked by Anonymous in Mathematics

I have to do a science proect and was wondering where I can buy a Sechi disk

2006-10-29 05:33:08 · 2 answers · asked by Banstaman 4 in Other - Science

Mg^2+Cl2------> (Mg^2+) +Cl-
Magnesium + Chloride
balance--- 2Mg+Cl2-----> 3MgCl

Li+(OH-) +(K+2)+S^2- -------->(Li+2)(S^2-)+K+OH-
lithium hydroxide + potassium +silicon---->lithium sulfate + potassium hydroxide?
how do you balance?

2006-10-29 05:30:51 · 2 answers · asked by ghettoco 1 in Physics

2006-10-29 05:28:48 · 26 answers · asked by harish amin 1 in Zoology

If I'm a mole (the animal), where is my rabbit?

2006-10-29 05:26:52 · 16 answers · asked by Barrister Wannabe 2 in Zoology

a person weighs 540 newtons on th earth. what is the person's mass?what would the person weigh on the moon where the acceleration due to gravity is 1.67 newtons per kilogram?

2) an elevator has a mass of 1000 kilograms
A. what is the tension force on its cables when it is stationary?

B. what force is needed to accelerate it upward at a rate of 2 meters per second per second?

C. what force is needed to accelerate it downward at a rate of 2 meters per second per second?

2006-10-29 05:24:24 · 4 answers · asked by Anonymous in Physics

2006-10-29 05:22:34 · 4 answers · asked by christopher o 2 in Engineering

i need help how can you make 32 over 4 a mixed number ?

2006-10-29 05:17:23 · 8 answers · asked by Anonymous in Mathematics

2006-10-29 05:08:59 · 5 answers · asked by redbird1 1 in Weather

2006-10-29 05:08:28 · 2 answers · asked by Anonymous in Chemistry

2006-10-29 05:08:11 · 10 answers · asked by Anonymous in Mathematics

On complete reaction with water, 0.10 grms of potassiun hydride KH yields a solution requiring 25.0cm^3 of 0.10M HCl for neutralisation.
The reaction occuring is :
KH + H20 --> KOH + H2
Calculate the RMM of potassium...

HELP PLEASEE ASAP thanks :)

2006-10-29 05:06:05 · 1 answers · asked by gianluca_azz 1 in Chemistry

between a rat-and-an elephant?

2006-10-29 05:05:45 · 3 answers · asked by hunter 6 in Zoology

a)HF+Mg------->
hydrogen fluroide + magnesium
water + salt
MgF+H
correct?

b)P+Cl2----> PCl3
Phosophorus + chloride---->phosophorus chloride
how do u balance this?3P+Cl2---->3PCl3

2006-10-29 05:02:30 · 2 answers · asked by ghettoco 1 in Physics

I also dont understand these two questions for my algerbra homework, ___ just means a blank:
___ s >14, s <-7

-2a > ___ , a < -9

thanks=)

2006-10-29 05:01:30 · 4 answers · asked by Dana 2 in Mathematics

Fill in the blank?

2006-10-29 04:59:47 · 7 answers · asked by truepoisonwontkill 2 in Biology

because

2006-10-29 04:59:31 · 2 answers · asked by MARY G 1 in Earth Sciences & Geology

Okay, I just started using this TI-89. I ALREADY HAVE THE SOLUTION. I JUST WANT TO KNOW HOW I SHOULD INPUT THIS INTO THE TI-89 (for future reference). I have to integrate sin^2(x)cos^2(x) dx. The solution should be1/32(4x-sin4x)+c.

Now my question is.. how do i input this into the ti-89? I need to know for future reference. What if its sin^3(x)cos^3(x), etc..?

Please help, really appreciate it.

2006-10-29 04:59:23 · 2 answers · asked by Ibrahim 3 in Engineering

2006-10-29 04:57:06 · 1 answers · asked by Shabab S 1 in Chemistry

2006-10-29 04:56:40 · 15 answers · asked by Anonymous in Astronomy & Space

I have no idea, I know it would affect everything to do with water, but how and what exactly?

2006-10-29 04:56:20 · 4 answers · asked by Anonymous in Chemistry

HCN AND KCN
NH3 AND (NH4)2SO4
HNO3 AND NaNO3
HF AND NaF
HNO2 AND NaNO2

2006-10-29 04:55:20 · 1 answers · asked by MARY G 1 in Chemistry

Two vectors projected on the axes of a coordinates system are called the _______of the resultant vectors.

2006-10-29 04:53:30 · 2 answers · asked by cool 1 in Physics

2006-10-29 04:48:41 · 12 answers · asked by Pratin S 1 in Physics

2006-10-29 04:46:19 · 6 answers · asked by Anonymous in Physics