Science & Mathematics - 9 October 2006

2006-10-09 14:54:48 · 1 answers · asked by reddy h 1 in Geography

Spotters reported no sound, and no familiar aircraft characteristics, dull metallic visuals. The con trail persists even now and is unaffected by wind appearing to be very high in the atmosphere. Could this be deorbitting space junk?`

2006-10-09 14:45:56 · 2 answers · asked by just_wondering 1 in Astronomy & Space

The ratio of hamsters to gerbils in a pet shop is 1:3. If the pet shop has 9 hamsters, how many gerbils does it have?

2006-10-09 14:44:14 · 11 answers · asked by Monique 1 in Mathematics

2006-10-09 14:42:58 · 10 answers · asked by Ry H 2 in Other - Science

I asked this question in the general form earlier, but the response wasn't what I needed; so here I am, asking it in its specific form.

Note: this ISN'T my homework problem - this is the example problem of the same style that I know the answer to, but I can't figure out how they got the answer.

Consider a random sample X1 ... Xn of normally distributed random variables with mean u and variance = 7.

If n=15, what is the probability that |u - x|<=.4? What if n = 50?

I know the answers to this are .4418 and .7150, but I can't figure out how they got that. I understand how to work backwards from having the probability and finding the c (.4 in this problem), but I can't figure out how to bring it the other way.

2006-10-09 14:42:42 · 2 answers · asked by Anonymous 3 in Mathematics

2006-10-09 14:41:27 · 7 answers · asked by Monique 1 in Mathematics

Jody plans to have a picture enlarged. The picture is now 2 in. wide by 3 in long. When enlarged, the length will be 42 in. What will be the width

2006-10-09 14:40:43 · 9 answers · asked by Monique 1 in Mathematics

what physical property of iron might provide a unique way to separate it from a mixture?

2006-10-09 14:36:46 · 4 answers · asked by NONE N 1 in Chemistry

some one told me to be sure my reserved seat will be in front and told me the reason was the turbulence.

2006-10-09 14:36:34 · 4 answers · asked by COUGAR 1 in Engineering

2006-10-09 14:36:16 · 21 answers · asked by Anonymous in Other - Science

A 0.500-kg object is suspended from the ceiling of an accelerating boxcar. If a = 3.00 m/s2, find (a) the angle that the string makes with the vertical and (b) the tension in the string

2006-10-09 14:36:16 · 3 answers · asked by Anonymous in Physics

http://www.myfilehut.com/userfiles/209012/puzzle.jpg

This is the URL to the problem I have, I cannot find the answer and need help.

2006-10-09 14:35:06 · 2 answers · asked by donohoeson 1 in Mathematics

Who is your favorite mathematician of all time?

2006-10-09 14:32:59 · 8 answers · asked by Richard H 2 in Mathematics

i naad to know how to make charts,graphs, and illustrations. i need to know the dependent and independent variables of this reasearch project.

2006-10-09 14:32:02 · 2 answers · asked by brittany w 1 in Other - Science

Now, this is a trick question. There should not be a large crator, but is you put a piece of paper on top of the nuke, there is a HUGE crator. Does math bare this out?

2006-10-09 14:30:58 · 7 answers · asked by jbgot2bfree 3 in Physics

2 Major differences between acids and bases (biology)

2006-10-09 14:29:15 · 11 answers · asked by thunderbabe128 2 in Biology

2006-10-09 14:29:10 · 6 answers · asked by Abbas H 1 in Biology

2006-10-09 14:26:12 · 6 answers · asked by Anonymous in Biology

hey
i have to do a report on the element cobalt. i would like to do it myself. could anyone post a link to a website that has a lot of information about the element cobalt (please do not write the information in the post, link to a website and not wikipedia). Thank you so much.

2006-10-09 14:24:33 · 3 answers · asked by binsch02 2 in Chemistry

PLZ HELP!!!!!!!!

2006-10-09 14:24:10 · 8 answers · asked by Monique 1 in Mathematics

She takes 4 tablets a day 1 at morning/ noon 2 at night . Attacks come only after She wakes up at morning and I have not seen any other time
She had atacks four times since Sept 12 till now and each time She has
2-4 shaking of right hand which causes her to drop anything She is holding ,She does not notice any incoming attack .
We have not notice any change toward better since She is under drug
so I thought I might get some information from someone who might know more and help.
thanks

2006-10-09 14:22:45 · 6 answers · asked by Anonymous in Medicine

I need some help plz!

2006-10-09 14:22:22 · 8 answers · asked by Monique 1 in Mathematics

ok i have a project due in 1 week and i need help chosing a plant or animal. So can you name one or a few plants or animals that are nowone really knows about it can be anything but cat or dog!Also any plant or animal you think of it can be in any countrie or state!

2006-10-09 14:22:16 · 3 answers · asked by Hot Sexy BItch! 1 in Other - Science

2006-10-09 14:20:21 · 7 answers · asked by jami 1 in Mathematics

i need help and i know this is probably easy to you but im not good at math!!!!!!!!!!!!!!!!

2006-10-09 14:18:33 · 8 answers · asked by Korey's Mamacita 1 in Mathematics

2006-10-09 14:18:17 · 8 answers · asked by alina c 1 in Earth Sciences & Geology

2006-10-09 14:17:26 · 2 answers · asked by Tara G 2 in Biology

2006-10-09 14:14:33 · 12 answers · asked by wendilynne 2 in Zoology

2006-10-09 14:13:38 · 3 answers · asked by Skitty 1 in Weather

For my science fair project, i'm going to see how low the water temperature can be and still "cook" ramen in exactly 3 minutes.
The only problem is...
I need some way to determine exactly when a noodle is either undercooked, or just not cooked at all...

since its a science fair project, I dont think just eating the noodle to see if it's cooked would be a good way to measure..

2006-10-09 14:12:19 · 4 answers · asked by loser 2 in Other - Science