Science & Mathematics - 13 August 2007

Last weekend i was able to watch the ISS cross the sky where i live, it look like a small star, less brighter than Venus. I'm wondering if i could see details of the ISS with a good telescope ?

2007-08-13 13:53:13 · 7 answers · asked by Kaynos 5 in Astronomy & Space

2007-08-13 13:50:04 · 19 answers · asked by freekyflyer 1 in Astronomy & Space

I need both of these solved i can't do them on my own thanks.

5/x + 3 + x/4 = -3


x/2x + 10 = x - 9/x - 7

2007-08-13 13:44:48 · 6 answers · asked by daniel's sweety 1 in Mathematics

2007-08-13 13:44:48 · 6 answers · asked by melissa 1 in Mathematics

Okay, so earth rotates and revolves. The atmosphere moves with the revolution, but does it rotate with the earth? Like, if you had a huge pole from the ground to the end of the atmosphere, would the end of the pole be touching the same part of the atmosphere 6 hours later? Or would it have changed?

2007-08-13 13:44:28 · 8 answers · asked by Anonymous in Astronomy & Space

Because NASA keeps trying to Band-aid 30 year old Tech.
Scap this system or more will die. Those tiles are a joke. If we lose another Shuttle we will be a second rate super power. Maybe we can outsource NASA to people with fresh engineering skills.

2007-08-13 13:43:42 · 6 answers · asked by Anonymous in Astronomy & Space

2007-08-13 13:41:07 · 5 answers · asked by rachel 1 in Mathematics

2007-08-13 13:40:24 · 2 answers · asked by Eric D 2 in Earth Sciences & Geology

2007-08-13 13:39:52 · 5 answers · asked by *05* 1 in Astronomy & Space

2007-08-13 13:39:13 · 2 answers · asked by Brilliant Queen (BQ)_forever !!! 5 in Physics

We build five shuttles for space and the Enterprise which never was used in space.Two have failed with loss of crew.If we are not going to retire the fleet we should build an escape pod. All ships have life boats. I can not see this old fleet been used with its problems.

2007-08-13 13:21:36 · 9 answers · asked by radio309 5 in Astronomy & Space

Alright, so, I'm a freshman in college this year, and I'm majoring in math, but I have a question. What applications to real life does an imaginary number have? I've always found reasons for all of the other types of math, even if I don't use them, but imaginary numbers just seem useless and bizzare. Can anyone give me a situation, or even a story problem that can give a possible (even if not likely) situation in which you would need to use an imaginary number?

2007-08-13 13:17:57 · 7 answers · asked by Anonymous in Mathematics

2007-08-13 13:13:32 · 15 answers · asked by ooari 2 in Physics

I know that plants use a cholorphyll to photosynthesize and thats what makes them green but my neighbor has a white plant and i can't figure out how it makes energy if white reflects all colors.

2007-08-13 13:12:10 · 6 answers · asked by readergrl 2 in Botany

I need some info on animal necropsies. I've been all over the web- wikipedia, answers.com, etc, and found hardly anything! I need suggestions for why a necropsy would be performed, how much they cost on average, disposal of the animal. Also, does anyoneknow if the "dog and cat food wheat gluten contamination" was confirmed by necropsies of the affected animals? Thanks!

2007-08-13 13:11:47 · 4 answers · asked by Anonymous in Zoology

It's so exasperating...if people live in a city area, for example near Canary Wharf will meteor showers ever be visible to the naked eye?

2007-08-13 13:10:29 · 13 answers · asked by Anonymous in Astronomy & Space

I know this may sound dumb but isnt an organism just any type or animal.. and if you can could you please post some picture lol =]

2007-08-13 13:02:59 · 4 answers · asked by Anonymous in Biology

Okay, the problem is:

Stefan polled 113 student about the number of siblings they have. Use the table to compare the probability that a student has no siblings to the probability that a student has three siblings.

The table shows that the number of students that had 0 siblings is 14 and the number of students that had 3 siblings is 15. So, what I'm doing is dividing 14 by 29 and 15 by 29, to find out the probability for each and they come up with really large decimals. Am I doing something wrong?

2007-08-13 13:02:17 · 8 answers · asked by Anonymous in Mathematics

just curious

2007-08-13 13:00:44 · 10 answers · asked by Anonymous in Zoology

2007-08-13 13:00:42 · 6 answers · asked by zelk z 2 in Astronomy & Space

me and my cousin were in her backyard when we spotted this wicked cute purple puff thing.
small, probably like the size of this "o"
it was one of the cutest things i've ever seen, same for my cousin.
they were around the trees, and once we cought one, it looked like a little purply puff (very light, almost white).
it had little wings like maybe how a fruit fly has.
they were never in clusters, when we found one it was always by itelf, kindof floating up into the air and trees.
lol but so i just remember them with my cousin today and i searched online and couldn't find ANYTHING about them!
if you could give me the name of these things that would be awesome!
we thought they might be a baby of some insect or bug.
cutest color ever
we havent seen any this year, but we did last year late summer.
and no we aren't insane lol, they had wings like a bug.
and i squished one accidently when tried catching one. oops.
i hope someone can answer this!

2007-08-13 12:58:08 · 3 answers · asked by Julia 2 in Zoology

Why are logarithmic scales used when measuring sound intensity, pH levels, and earthquakes?

2007-08-13 12:56:56 · 1 answers · asked by Anonymous in Mathematics

Solve the equation 7a^2 + 12a - 11 = 0, giving your answer to two decimal places.

2007-08-13 12:54:11 · 3 answers · asked by Anonymous in Mathematics

Referring to the figure, simplify the expression if possible and write your answer as a power (using exponents).
1.(6 x 7)^2
2.(4xy^2)^2
Referring to the figure, evaluate the expression when b=2.
3.b^3 x b^4
evaluate the expression when a=1.
4.(a^2)^3

2007-08-13 12:53:16 · 7 answers · asked by Berry A 2 in Mathematics

If you know of any PLEASE let me know. Thanks.

2007-08-13 12:45:03 · 5 answers · asked by Anonymous in Chemistry

1) LM = 3x+8
MN= 2x-5
LN= 23

2) LM= 7y+9
MN- 3y+4
LN=143

3) LM= 1/2z +2
MN= 3z + 3/2
LN = 5z +2

2007-08-13 12:43:53 · 3 answers · asked by Anonymous in Mathematics

I live out in the woods (very rural area) and I've noticed at night lately there often have been several large, bipedal creatures that won't come near light, lurking in the woods. It sounds very odd but it's true. They're not dogs, wolves, or bears, and not people.They scare me to death and I have installed several yard lights all around my property, and I can't let my dog out at night anymore. I called my local authorities and they came out to investigate, found nothing and simply thought I was seeing things. I'm wondering if anyone else has this sort of problem. The things, whatever they are, are about 4 feet tall, with claws apparently, are dark in color, with eyes that seem to glow, and I think they've been at the local wildlife, as I haven't seen any squirrels or chipmunks anywhere near my house anymore. I'm really pretty scared..they almost seem like I've heard demons portrayed. I'm not losing my mind, I swear, I just can't be the only person who has encountered these creatures.

2007-08-13 12:42:55 · 12 answers · asked by drut_hallt 2 in Zoology

An artillery shell is launched on a flat, horizontal field at an angle of α = 33.8° with respect to the horizontal and with an initial speed of v0 = 256 m/s. What is the horizontal distance covered by the shell after 5.10 s of flight?
1.08×103 m (in m) answer
What is the height of the shell at this moment?
5.99×102 m (in m) answer

i know the answer but could someone show me how to work this out...need to study for final...thanks

2007-08-13 12:42:37 · 2 answers · asked by Anonymous in Mathematics

if a single die (number cube) is rolled 300 times, how many times is a number greater than 3 expected to come up?

2007-08-13 12:42:10 · 10 answers · asked by Megan 3 in Mathematics

in this video i found it shows this star supposedly "dissappearing" but i thought it totally looked photoshop

what d'you think?

http://youtube.com/watch?v=3czDyk-mOXA

2007-08-13 12:41:17 · 9 answers · asked by Katie 4 in Astronomy & Space