Science & Mathematics - 23 July 2007

There you are in space....traveling at the light...you turn your headlights on... do they work? Project light outward?

2007-07-23 14:30:04 · 10 answers · asked by Rodger M 1 in Physics

at different angles rather than a smooth surface?

2007-07-23 14:26:31 · 2 answers · asked by Anonymous in Earth Sciences & Geology

i have a 2 small squares that are 5.2cm and 6cm i need to make them fit in the the big square(7.8cm).
they cannot overlap and can be in any shape but u have to use all the shapes

2007-07-23 14:23:29 · 1 answers · asked by stat 2 in Mathematics

Personally i doubt..Simply no protection against amount of radiation on Moon according to science..When the Yanks were asked to go into some radioactive site said did not have suits strong enogh to with stand radiation,thats what stopped the Russians..Whole pile of DOdgy photos but main thing i cant get is they have not got propulsion for man space craft to leave the moon..Also know they say expensive but why not go back ,other space missions done...Could some more americans be sent to moon please..Did hear Japenese were inventing a telescope that was that powerfull the flag on moon should be visable...Still they can lie to us all..

2007-07-23 14:21:39 · 33 answers · asked by yaboo 4 in Astronomy & Space

Todays' answer is Crop Circles on ~Yahoo~..If they are the one's who is doing it, we don't have to worry about anything...maybe they are alot smarter than us humans...what do you think?...Seriously?.

2007-07-23 14:21:27 · 7 answers · asked by fantasy01 1 in Astronomy & Space

I just want to hear a variety of explanations for precognition... offer up whatever you think is a valid explanation of it, be it an alternative or a scientific explanation, or just an interesting explanation for it that you know about. Thank you!

2007-07-23 14:21:16 · 13 answers · asked by ssmith 3 in Parapsychology

I've always marvelled at the whole concept of light as a particle and simultaneously as a wave. I understand the basics of E=MC2, but wondering if light is a particle, how much mass does it have? Is the mass dependent on how excited the photon is? I guess I'm kind of answering my own question a bit. Well, maybe not...

2007-07-23 14:19:02 · 5 answers · asked by Unanswerable conundrum 1 in Physics

2007-07-23 14:18:47 · 6 answers · asked by Bloody Hell Is British, Love 1 in Botany

2007-07-23 14:18:47 · 3 answers · asked by jennifer f 1 in Mathematics

2007-07-23 14:17:49 · 6 answers · asked by jennifer f 1 in Mathematics

am trying to make a fictional calendar year that makes sense (somewhat). What if 60 earth seconds made 60 earth minutes that made 1 earth hour with 32 hours in my fictional day, 9 days in my fictional week, and 455 days in my fictional year and for my fictional planet to revolve around my fictional sun. How often will I need a leap year?

I know this might sound stupid but humor me please (with real responses).

2007-07-23 14:17:05 · 5 answers · asked by chriscornelluv@sbcglobal.net 2 in Astronomy & Space

I need some help with the following problems:

1. the base of a triangle is 10m greater than the height. the area is 12m squared. find the height and the base.

2. the base of a triangle is 16cm greater than the height. the area is 40cm squared. find the height and the base

3. the height of a triangle is 5cm less than the base. the area is 42cm squared. find the height and the base

4. the base of a triangle is 9cm less than the height. the area is 35cm squared. find the height and base

5. if the sides a square are lengthened by 4m, the area of a square becomes 100m squared . find the length of a side of the original square.

if not the solution to the problem i would prefer how to set it up to solve it, then i can finish the rest.

thanks!

2007-07-23 14:12:59 · 4 answers · asked by Anonymous in Mathematics

Say you had a motor run on a nine volt battery. Would the power from the spinning axis be greater than the amount of power it uses to keep running? How could you test this?

2007-07-23 14:11:08 · 4 answers · asked by Anonymous in Engineering

2007-07-23 14:10:58 · 7 answers · asked by splinterc16 1 in Engineering

2007-07-23 14:09:03 · 7 answers · asked by noonecanne 7 in Earth Sciences & Geology

On a side note; not to be gross, but why can't you fertilize your lawn with your own poo? Not that I would do that, but it seems weird that our waste has to be treated at a plant, but animal waste can be composted and used effectively? Maybe a farmer can answer me this....

2007-07-23 14:06:46 · 7 answers · asked by dan 4 in Biology

so every once in a while someone e-mails this to me or posts it on myspace and i have nevr been able to figure it out.. figure i'll post it here... see what ya'll can come up with...here it goes

Find the error. It's impossible!

AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
III
JJJ
KKK
LLL
MMM
NNN
OOO
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ

Did you know that 80% of UCSD students could not find the error above? Repost this with the title "This Is Freakin' Hard," and when you click "post bulletin," the answer will be really obvious

2007-07-23 14:04:11 · 6 answers · asked by allyn h 4 in Other - Science

Hillside High school has 504 students. One-quarter of the students are sophomores, and 3/7 of the sophomores are boys. If one-third of the sophomores girls take French, how many sophomore girls do not take French

2007-07-23 14:01:59 · 9 answers · asked by Anonymous in Mathematics

First of all you probably won't believe me but it has happened so many times I can't ignore it anymore. I work in a large department store, and have for the past two years. I started noticing I would think about someone one or two days, or even minutes before and then they would come through my lane. I thought it was just a coincidence because I think about alot of people but the other day I thought of someone who had never come through my lane before and then today they came through my lane... and this is not the first time that exact thing happened... it has happened way too many times for me to ignore and I can't brush it off as a coincidence anymore because it has bypassed probability... but now I just want to know what it means?

2007-07-23 14:00:05 · 14 answers · asked by ssmith 3 in Paranormal Phenomena

is NOT an example of evolution? anybody know?

2007-07-23 13:59:12 · 2 answers · asked by biomes 1 in Biology

When the Apex Pet Store first opened, the ratio of cats to dogs was 4 to 5. Since then, the number of cats has doubled, while the number of dogs has increased by 12. If the ratio of dogs to cats is now 1 to 1, how many cats did the store have when it opened?

2007-07-23 13:57:24 · 6 answers · asked by wu_4533 2 in Mathematics

2007-07-23 13:55:49 · 1 answers · asked by hemraj_singh59 1 in Engineering

There are two cars going toward each other and starting 60 miles away from each other. One car's speed is 20m/h and the other one is 40m/h. How long does it take for both cars meet each other ?
Please help me and I am going to give the correct answer a 10 points

2007-07-23 13:54:37 · 15 answers · asked by missybitsy 1 in Mathematics

i have given 3 cases below. I just want you to explain, in which of the cases will my weight be the maximum..

1). i am standing on earths surface
2). i am standing 200m the earths crust
3). i am standing 200m away from the earths crust in the atmosphere....

2007-07-23 13:53:11 · 3 answers · asked by Kalpak I 2 in Physics

2007-07-23 13:48:52 · 4 answers · asked by Anonymous in Mathematics

What volume in cubic centimeters would be occupied by 7.96 kg of osmium? The density of osmium (the densest metal) is 22.57 g/cm3?
Units are important! 7.96 kilograms- but density is given in grams per centimeters cubed...

2007-07-23 13:48:09 · 2 answers · asked by swisscheese 1 in Other - Science

I have not and do not believe in them. May you can change my mind.

2007-07-23 13:46:24 · 20 answers · asked by Smarter than the average bear 4 in Paranormal Phenomena

2007-07-23 13:45:23 · 8 answers · asked by hawaianprincess15 1 in Physics

2007-07-23 13:41:04 · 5 answers · asked by jarynth3 1 in Physics

I have 1813 points right now and if I were to ask the maximum amount of questions--15, how many days would it take for me to have "0" points. This is a simple math question. And yes, I can figure it out for myself, I just don't feel like it. Besides, someone could use the 10 points.

2007-07-23 13:39:11 · 11 answers · asked by BookLady 3 in Mathematics