Science & Mathematics - 15 August 2007

please tell me

2007-08-15 16:20:35 · 16 answers · asked by hanon hosho 2 in Astronomy & Space

I cant remember how to do this sort of problem. If you could answer and tell me how to get to the answer in a good amount of detail, that would be great!

2007-08-15 16:15:22 · 7 answers · asked by Amberlyn 1 in Mathematics

f(x)=7x^4+14x^3-168x^2

2007-08-15 16:12:49 · 4 answers · asked by Ke-Man 2 in Mathematics

Is this black magik used for white purpose?

2007-08-15 16:02:02 · 5 answers · asked by ThanksBelit 2 in Parapsychology

Has there ever been a design that only used magnets as a power source to power a car?
I developed this design(only on paper so far) to power a car using nothing but magnets as a power source. Has this been done yet? If so was it successful, if not, why? The only major problem I can think of so far with this design is metal objects flying across the road being attracted to the car.

2007-08-15 15:59:05 · 4 answers · asked by nick 1 in Engineering

I read that nuclear fission causes a chain reaction of energy being released, but it didn't tell me what would happen if the chain reaction was not stopped, only that it was similar to an atomic bomb. Obviously, an atomic bomb does not explode forever, so what stops it?

2007-08-15 15:56:32 · 7 answers · asked by Anonymous in Physics

..due to less body mass protein?

2007-08-15 15:52:06 · 6 answers · asked by Pansy 4 in Medicine

2007-08-15 15:50:11 · 3 answers · asked by Anonymous in Physics

This is assuming it has no moving parts (such as hard drives). I don't think it can (unstable parts and such), while some friends think it can. I'm really curious about whether it can.

2007-08-15 15:47:22 · 6 answers · asked by Zach 2 in Physics

I think it's wonderful that doctors can open up a person & fix whatever needs fixing, but a dead person is another story. I think it would be interesting, but I can't imagine cutting open a dead person & taking out their organs, to try and determine the cause of death. And if they bring in a body that's been dead for weeks, it must be horrible. You can't say "I don't want to do this one." Oh yeah, and they drain the person's blood, if the person had just died. I realize that SOMEBODY has to do it, but not a woman! Yuck!

2007-08-15 15:38:01 · 14 answers · asked by scaredeycat 3 in Medicine

I just recently did 540 mg of dxm and I'll tell ya it was insane!!! This is equal to 18 triple C's... I began to lose the sense of "I have a body" and started to "leave" it... I felt so, so, so small but when I moved around it was slow but fast at the same time! My energy levels were through the roof!!! Im talkin motivation like no other and after running my breathing remained the same and I was ready to continue. I felt light as a feather and standing up from the ground was so easy and quick! How about you?!?!?!

2007-08-15 15:37:50 · 3 answers · asked by twiztid_ditzwit 2 in Medicine

2007-08-15 15:35:08 · 3 answers · asked by Anonymous in Weather

that puncher can punch over 100 paper together...

2007-08-15 15:34:31 · 2 answers · asked by YaNg_ D 1 in Engineering

Is there anything that can go up 50 feet for a distance of 500 feet?

2007-08-15 15:24:55 · 6 answers · asked by Greywolf 6 in Engineering

My theory on the origin of life is pretty basic, a chance bonding of the elements forming DNA, but I don't understand what changed about the chemicals to form sentient life. What is the missing factor? (No religious crap)

2007-08-15 15:18:57 · 7 answers · asked by Anonymous in Chemistry

the company who's making automotive airconditioning and compressors.

2007-08-15 15:14:50 · 1 answers · asked by chauffeursdaughter 1 in Engineering

I thought this set was the absolute PERFECT set of binoculars! Please give me feed-back on what you think!

http://www.opticsplanet.net/celestron-outland-lx-10x50-binoculars.html

2007-08-15 15:14:49 · 4 answers · asked by Jenny 2 in Astronomy & Space

2007-08-15 15:13:51 · 21 answers · asked by Drewboy 1 in Medicine

divide?

2007-08-15 15:10:18 · 5 answers · asked by Anonymous in Mathematics

I know that the "f" stands for fast but what does that mean.My scope is f8.can some one shed some light on this for me...thanks

2007-08-15 15:05:37 · 6 answers · asked by Anonymous in Astronomy & Space

2007-08-15 15:03:25 · 5 answers · asked by Hoshi K 1 in Chemistry

We have a natural spring at the bottom of a hill but want to pump the water to the top of the hill for livestock so we don't damage the natural spring and have easier access to the water.

We currently have a 3000 gallon tank the natural water spring runs into and a pipe coming out of the tank to our pond. How can we incorporate this into our wind-mill/ water pump?

****** There's no electricity on premises. *(*****

2007-08-15 15:02:35 · 3 answers · asked by Greywolf 6 in Engineering

Me and a friend were given a brain teaser at school.
we have two ropes around our wrists and then linked/hooked together. we have to get apart without taking them off our wrists.
THANKS

2007-08-15 14:48:43 · 1 answers · asked by vialpando_michael 1 in Other - Science

2007-08-15 14:44:23 · 2 answers · asked by victory0388 1 in Medicine

Consider the initial-value problem
y' = -y, y(0) = 1.
The analytic solution is: y(x) = e^(-x).

(a) Approximate y(0.1) using one step Euler's method.
(b) Find a bound for the local truncation error in y_1 (where '_' means subscript).
(c) Compare the error in y_1 with your error bound.

Thanks!

2007-08-15 14:39:17 · 1 answers · asked by amckee851 1 in Mathematics

what happens to the mass of gas when the temperature goes up

2007-08-15 14:33:45 · 4 answers · asked by Pre lives on 5 in Physics

when the temperature of the gas rises what happens to the density of the gas"

2007-08-15 14:24:28 · 10 answers · asked by Pre lives on 5 in Physics

I live in central Kentucky and ran into this spider today. It was in a big web in between two bushes. It is furry and had really long legs. Also it was really fast.
http://i64.photobucket.com/albums/h177/meggoloveskeith/100_1258.jpg
http://i64.photobucket.com/albums/h177/meggoloveskeith/100_1254.jpg

2007-08-15 14:23:06 · 7 answers · asked by Anonymous in Zoology

2007-08-15 14:23:02 · 2 answers · asked by Anonymous in Engineering

id like to know because id like to become a nasa engineer one day

2007-08-15 14:21:23 · 4 answers · asked by zack l 1 in Engineering