Science & Mathematics - 20 September 2006

Solve the equation for x: 2x + 3 = 9

can you tell me how to solve this, step by step.. Thanks

2006-09-20 17:12:51 · 13 answers · asked by Anonymous in Mathematics

2006-09-20 17:12:18 · 5 answers · asked by Wally G 1 in Biology

my nephew is in seventh grade and has to do a big science project. it cant be anything like a volcano. it has to have a question and experiment to prove the answer. example. which dissenfectant works best

2006-09-20 17:07:54 · 1 answers · asked by kristina n 2 in Other - Science

Simple, but specific...please!

2006-09-20 17:05:53 · 10 answers · asked by Daniel Black 1 in Chemistry

Police find skid marks 28 m long on a highway showing where a car made an emergency stop. Assuming that the acceleration was -10 m/s^2 how fast was the car going?
Please show work.

2006-09-20 17:05:15 · 4 answers · asked by lorenzo p 1 in Physics

Simple, but specific...please!

2006-09-20 17:04:55 · 9 answers · asked by Daniel Black 1 in Chemistry

2006-09-20 17:04:08 · 3 answers · asked by BRIAN D 1 in Zoology

Probably Niels Bohr was of the opinion that God can play dice also. Experiments show that if ther are two slits ahead, An electron fired from an electron gun can decide thru which slit it should go... can that mean stones have life, cars have life, houses have lives, probably ther is an element of Divinity in everything around..? Physics is coming to Philosophy or what?

2006-09-20 17:03:22 · 8 answers · asked by jayakrishnaathmavidya 4 in Physics

I am having a hard time understanding it . It looks fascinating to learn but every explanation is so scientificly termed

2006-09-20 17:01:39 · 3 answers · asked by Anonymous in Physics

I need a map that shows Otzi's trail and about the copper age in europe. Can someone give me a good website please?

2006-09-20 16:55:58 · 1 answers · asked by yo ^_^ 3 in Biology

where i can find the UFO / Alien

2006-09-20 16:55:45 · 5 answers · asked by ohyeach 1 in Other - Science

2006-09-20 16:49:42 · 19 answers · asked by sorbitrate_trois 2 in Mathematics

I am having a hard time understanding it . It looks fascinating to learn but every explanation is so scientificly termed.

2006-09-20 16:47:39 · 7 answers · asked by Anonymous in Astronomy & Space

A package is dropped from a passing plane(moving in the horizantal direction) and produces a projectile motion as it is falling to the ground. If it takes the package only 49.92 seconds until it hits the ground, how far above the ground was the plane when the package was released?

2006-09-20 16:46:29 · 5 answers · asked by Anonymous in Physics

Call me someone who "lives in a cave" but how does running water work? When I turn on the tap, water comes out. Is there some hydraulic thingy to all this?

This question is out of boredom and curiousity.

2006-09-20 16:46:22 · 9 answers · asked by chrstnwrtr 7 in Other - Science

In x-y plane, draw multiple touching circles of 1 inch radius with centre at even numbers i.e circles of 1 unit radius at (0,0) ; (2,0) ; (4,0) etc.. similarly at (0,2), (0, 4)… (2,4), (2,6) etc. filling all quadrants.

We wish to pack entire x-y plane with pixels having dia d1. Assume 100 pixels pack into 1 unit radius i.e 100*d1 = 1 inch.

Each pixel is a progressive shade of black. At Circle centers, pixel is 75% black. At periphery of circle, its 25% black i.e. shade progressively reduces as it radiates out until it meets the line radiating from adjacent circle.

e.g. lines from (0,0) and (0,2) will start at 75% from their respective centres; meeting at (0,1) where pixel will be 25% black. In between the shade is continuous progression from 75% to 25%. As you will note, lines from (0,0) and (2,2) radiating towards each other will meet at (1,1) which is outside the circle, so the shade of pixel at (1,1) will be less than 25% (but in the same ratio of progression)

2006-09-20 16:46:20 · 4 answers · asked by Anonymous in Mathematics

does anyone any good website that can help me solve derivative questions?

2006-09-20 16:39:10 · 4 answers · asked by bhoots5 2 in Mathematics

im 32

2006-09-20 16:33:50 · 11 answers · asked by flash9974 2 in Mathematics

How are the three beams on a triple-beam balance different?

2006-09-20 16:30:48 · 7 answers · asked by Ashley 1 in Other - Science

Whoever smart in Mathematics please answer this...

Now a mother is 21 years older than the child.
6 years later, the mother is 5 times older than the child.

QUESTION:

WHERE IS THE CHILD’S FATHER?
Please think and answer in mathematical approach,
please prove you have the ability to think rationally...

2006-09-20 16:27:58 · 19 answers · asked by Anonymous in Mathematics

A) 0
B) -1
C) 10
D) infinity

I believe its B, can't be negative? because of the -log [H+] equation, the -log turns the answer into a positive. Is it correct?

2006-09-20 16:20:24 · 13 answers · asked by hmmm 2 in Chemistry

Who's asleep and dreaming you and I up and giving us life while that "thing" or whatever is asleep. Its unusual, this "thing" is programming our life to give us the impression we are alive and doing our thing! When we fall asleep (whenever that is), it means that "thing" is awake and is going about it's daily life and we're forgotten till it goes back to sleep!
No! I don't watch tv or movies!!! Its this feeling I've been having lately. What do you think about this? No! I don't drink, smoke pot, take drugs or anything else. My system is clean!

2006-09-20 16:20:08 · 6 answers · asked by ZORRO 3 in Other - Science

Ok Im trinbg to do my lil brothers home work cuz he cant lol and Im in the theth grade and he's in 5th so I guess Ive for gotten this stuff already so I hope yall can help... Please Heres the question---- The _________ is the part of an experiment that is not being tested and is used for comparison... I know its a 7 letter word the 2nd letter is a o and the 4th is a t lol yes its a cross word puzzel but itts hard lol...

2006-09-20 16:19:41 · 2 answers · asked by Anonymous in Other - Science

2006-09-20 16:18:28 · 8 answers · asked by erica c 1 in Astronomy & Space

2006-09-20 16:17:19 · 12 answers · asked by Anonymous in Mathematics

Does it have something to do with the composition of the pit? Some chemical reaction?

2006-09-20 16:17:14 · 2 answers · asked by satyr_cub 1 in Botany

My aunt called me and asked me this because she was trying to help my cousin with his homework. She came up with an answer but my boyfriend has realized that the answer she came up with is wrong and we can't figure it out. Here's the problem:

You have 16 coins that equal $2.00. How many quarters and how many nickels do you have?

We know the answer is 6 quarters and 10 nickels, but what is the equation that is used to solve the problem?

2006-09-20 16:15:36 · 5 answers · asked by Honey 2 in Mathematics

Hey I need help writing balanced net ionic equations for the following two:

a) the reaction of dilute nitric acid with solid aluminum oxide

b)the reaction of nitrous acid (HNO2) with potassium permanganate to produce nitrate and Mn(II) ions.

2006-09-20 16:08:32 · 2 answers · asked by swejedi7 1 in Chemistry

2006-09-20 16:07:50 · 2 answers · asked by thunderbomb90 3 in Biology

A very intelligent MD friend of mine tells me that pt's who have had a high fever and resulting damage often, later along, start unexpectedly going into system failure one system at a time...due to a common mistake most MD's make.

The mistake is forgetting the pituitary gland's involvement. They see low TSH levels, thinking thus that all is going along well...but missing the pituitary gland, ultimately to the patient's demise.

Is this true? Can you describe more fully what he meant? Or direct me towards any articles on the subject? Any insight would be valued, even contradiction.

I have a friend who suffered a fever of 107F due to meningitis and septic shock. He made an amazing recovery (as the MD documented a 9% chance of survival and told the parents their son would die) and is getting better in rehab. I am his RN. I can slip an article in the chart with a note and let his MD's peruse. My friend is doing so well, I'd hate to see things turn around...

Thanks!

2006-09-20 16:05:39 · 2 answers · asked by Anonymous in Medicine