Science & Mathematics - 16 November 2007

2007-11-16 15:07:32 · 9 answers · asked by poornima s 1 in Mathematics

2007-11-16 15:03:55 · 3 answers · asked by Anonymous in Mathematics

souls go when we die? Souls are eternally young, they do not die with the body.

2007-11-16 15:02:28 · 22 answers · asked by 2 makes 1 4 in Paranormal Phenomena

A plasmid is a circular DNA molecule that scientists use to transform bacteria and plants.
 
Plasmids are naturally found in some ____________________.

a.
insects
c.
plants
b.
bacteria
d.
humans

2007-11-16 14:57:21 · 3 answers · asked by M 3 in Biology

2007-11-16 14:55:16 · 10 answers · asked by snnfsnnf 1 in Medicine

i just wanted to know because people are always using the phrase "yeah i'll do this, when pigs fly." so they always end up doing it so did a pig really fly or what?

- haley adkison

2007-11-16 14:55:14 · 12 answers · asked by Sidneyy!@#$%^&* 2 in Zoology

2007-11-16 14:54:57 · 1 answers · asked by Anonymous in Biology

I assume that someone has to have thought of the possibility of Martian diamonds. The planet having sources of Ti rich soil areas would lead me to believe that in the corrrect circumstances of vulcanism and geology diamonds could form there and would be a great source of revenue for the space effort to retreive them.

2007-11-16 14:52:23 · 2 answers · asked by Robb H 2 in Astronomy & Space

Explain how to find the coefficient of kinetic friction between a wooden block of unknown mass and a tabletop in the laboratory. Include the following in your explanation:
*Measurements required
*Equipment needed
*Procedure
*Equation(s) needed to calculate the coefficient of friction.

2007-11-16 14:51:05 · 1 answers · asked by Anonymous in Physics

I want to use a helium tank I have had for awhile. Does anyone know if there is a way to know how much helium is left in a tank. Also does it ever go bad?

2007-11-16 14:50:14 · 3 answers · asked by Anonymous in Chemistry

2007-11-16 14:36:19 · 4 answers · asked by oneakmusic 2 in Astronomy & Space

2007-11-16 14:30:58 · 5 answers · asked by RedSparkle 1 in Mathematics

Are they friends?
Are they enemies?
Do they ever meet?

2007-11-16 14:30:25 · 4 answers · asked by Everyone 4 in Zoology

I can not seem to find the right answer!!!

2007-11-16 14:28:53 · 5 answers · asked by RedSparkle 1 in Mathematics

Use integration by parts to evaluate the definite integral. Integrate from 1 to e.
4 t^2 ln(t) dt

2007-11-16 14:25:09 · 2 answers · asked by sportzblock 1 in Mathematics

I have to build a mousetrap car that will go the fastest and farthest on a thirty degree incline. how do i do that???? help please

2007-11-16 14:17:52 · 3 answers · asked by hopelessly_shy 1 in Engineering

Why are you awake during brain surgery apart from the fact that your brain has no pain sensors?

2007-11-16 14:17:31 · 0 answers · asked by Anonymous in Medicine

what time is it?

2007-11-16 14:15:20 · 19 answers · asked by Anonymous in Astronomy & Space

I live in a fairly light polluted neighborhood in Tulsa, OK. On a clear night (like tonight) I can see Andromeda as a faint smudge. I know I've seen some open clusters but I'm new to Astronomy and haven't documented findings yet (I plan to start tonight, hopefully) I do the best I can to avoid white light and let my eyes get adjusted. So, if somehting such as Andromeda is a faint smudge through my 15x70 Celestron bino's what would be a good globular I might be able to see. Right now Cassiopeia , Perseus Pegasus Triangulum and Lacerta are all constellations that are at a descent place to view from my house. Any good globulars or something other than an open cluster you can recommend trying to find. (I've already enjoyed the wonderful comet as well as Orion's nebula.) Thanks

2007-11-16 14:13:28 · 9 answers · asked by auriga2099 2 in Astronomy & Space

I have to do a cell project on animal cells I am totally clueless. I cannot use food products.Any suggestions?

2007-11-16 14:12:21 · 8 answers · asked by Cortney Rakes 1 in Biology

ok, in my town a boy was killed by a train, people say there were 2 passing trains and he got sucked in between the trains when they passed each other where he was. i dont believe this, and i want to know if this is possible to happen, by the way, the kid was on drugs.

2007-11-16 14:10:47 · 4 answers · asked by kid 2 in Physics

How do I find speed in M/PH when I have the distance in miles and seconds from point A to point B?

2007-11-16 14:09:34 · 3 answers · asked by Anonymous in Physics

According to this page:
http://mathworld.wolfram.com/StandardError.html

It says: "It therefore estimates the standard deviation of the sample mean based on the population mean."

So for example, if I have an entire population of 5 people, their age is {8,6,7,1,5}, then its stddev is about 2.702 and mean is 5.4

If I take random sample of size 3, maybe I will come up with {8,1,5}, then its stddev is about 3.512, mean is 4.667

As I increase the size of the sample and finally come to 5, that is, the sample is exactly equal to the entire poplution in this example. Then the standard error of the mean between [the sample] and [the entire population] should theoretically be zero.

But when I use this formula SE = σ/sqrt(n),
Since I already know the stddev of the entire population, which is 2.702 and I also know the size of the sample is now 5.
Substituting these values into the formula:
SE=2.702/sqrt(5)=1.208

The SE is not equal to zero. Why?

Thanks a lot.

2007-11-16 14:09:21 · 3 answers · asked by I need answers 1 in Mathematics

i mean hello i am doing a project and i dont know what it is

2007-11-16 14:02:40 · 5 answers · asked by Cindi G 1 in Chemistry

I know this is an odd question, but I HAVE TO KNOW!

2007-11-16 14:01:37 · 2 answers · asked by Anonymous in Physics

Providing an air conditioner is powerful enough to cool a room well and is rated at, say 3 litres an hour of water extraction, how would the relative humidity of the room be affected? If the relative humidity, was %80 before the AC was turned on, what, roughly, would the relative humidity be a few hours after use? I know many factors are involved, not least being the make and model of the AC but I am looking for a very vague idea. Could a reduction of %40 humidity be achieved, or is %5 more likely?

2007-11-16 13:58:55 · 5 answers · asked by Peter 2 in Physics

just tell me what to include in the paper

2007-11-16 13:58:49 · 3 answers · asked by kennedie 1 in Earth Sciences & Geology

there is a jogging course where they run one lap. person A ran at the rate of 120meters/minutes. person B ran at a rate of 100meters/minute. As a result, person A finished one lap 3 minutes faster than person B. How many meters are there in one lap around the jogging course?

2007-11-16 13:58:08 · 4 answers · asked by Osamu Miyawaki 1 in Mathematics

10 points!

2007-11-16 13:58:06 · 5 answers · asked by onetreehunny 4 in Biology

Yeah OK - a whale weigh station. But where do you go to weigh a pie?

2007-11-16 13:57:43 · 9 answers · asked by Anonymous in Zoology