Science & Mathematics - 22 December 2007

My friend thinks he's all smart and tells me according to physics, playing an intense game of basketball for and hour requires more energy than running on a treadmill for and hour or swimming for an hour, he tells me its better and it requires more power. I know its not true, y do u get so much more exhausted while running and swimming then But he uses all these dumb equations. How do I say that running or swimming requires more energy, or power, or work or whatever physics term he wants to use.

2007-12-22 12:04:50 · 5 answers · asked by Dhoopy 3 in Physics

2007-12-22 12:04:15 · 2 answers · asked by Gideon 1 in Earth Sciences & Geology

Appalachian Plateau
Canadian Shield
Great Plains
Mississippi River Valley

2007-12-22 11:59:53 · 3 answers · asked by Anonymous in Geography

If matter can be neither created nor destroyed,where does it go.I know that atoms are pulled apart once inside,but what happens to them.

2007-12-22 11:59:00 · 10 answers · asked by Wes 2 in Physics

info please!!

2007-12-22 11:56:02 · 11 answers · asked by Anonymous in Astronomy & Space

2007-12-22 11:55:03 · 10 answers · asked by gimp g 1 in Mathematics

4 PH3(g) P4(g) + 6 H2(g)
If, in a certain experiment, over a specific time period, 0.0045 mol PH3 is consumed in a 1.8 L container each second of reaction, what are the rates of production of P4 and H2 in this experiment? The answers are in mol/L.s

2007-12-22 11:54:56 · 1 answers · asked by Ade 1 in Chemistry

I need a real world problem that uses the Pythagorean Theorem (c squared=a squared + b squared) for my math project.

2007-12-22 11:54:22 · 7 answers · asked by emilyemy45 2 in Mathematics

What was the gas observed bubbling from Zinc, Aluminum, and Magnesium?? Suggest a way this could be tested experimentally.

Write the complete, balanced reaction of the metals with hydrochloric acid. What was oxidized, and what was reduced?

2007-12-22 11:51:47 · 2 answers · asked by I don't know 2 in Chemistry

if i crush my darvocet will it work better cause it does nothing for me .i have cronic back pain.there 100/650 should i take more then 2 pils at a time

2007-12-22 11:50:37 · 2 answers · asked by taez 1 in Medicine

Ok so I was in BJ'S reading the world record book and it said the highest temperature is believed to be infinite..which was the temperature during the big bang theory....So somehow the idea of infinite temperature does not seem like a logical concept. Or I just can't think logically....So can someone please break it down in a way which I can understand???????? thanksss

2007-12-22 11:49:18 · 6 answers · asked by Anonymous in Astronomy & Space

Divide: 24m^4n^2-8m^2n^3+4m^3n ÷ 4m^2n.

2007-12-22 11:47:43 · 4 answers · asked by Anonymous in Mathematics

Hey, you ppl think by the year 2012-2014 there will be a mission to mars?

I heared in The Science Channel that they will be going before the year 2014 and in CNN hey also said it. Also i had a speaker at my school last year that works for NASA, and he said that by the year 2012-2013 they will be going to Mars no doubt about it. I bealive that they are, since we have the technology to get there already. And by the stuff ive seen and heard.

What do you think?

2007-12-22 11:44:38 · 7 answers · asked by Anonymous in Astronomy & Space

2007-12-22 11:41:45 · 2 answers · asked by abalila a 1 in Chemistry

Okaii, i know this sounds silly, but me and my friend are having a serious problem with like a grade 2 question.
So heres the thing:
Altogether we both had 22 chocolates.
I had the odd numbers(including 1) and she had the even.
But when she was suppose to eat the 22d, she gave it to me.
How many did we each have?
Now, logically you would think the ratio is 10:12 but wouldn't that mean that i had TWO more then her? Because the difference between 12 and 10 is 2. But i only had one extra. If i hadn't ate one more, we'd have had the exact same amount. So that would mean i had one more.
But what every one is telling us is that i had 12. LIKE I SAID! THAT WOULD MEAN I HAD TWO MORE!
Wtf! This is a serious question as silly as it sounds, so please answer seriously.
Thanks!

2007-12-22 11:33:53 · 8 answers · asked by Kathy 1 in Mathematics

why do not fly straight across atlanitc to europe

2007-12-22 11:23:25 · 5 answers · asked by jaroslawbaran 2 in Geography

2007-12-22 11:22:59 · 9 answers · asked by Anonymous in Astronomy & Space

2007-12-22 11:19:12 · 4 answers · asked by Anonymous in Zoology

I've found a gradient of -1 over 2/3 is this the same as 3/2 and if so why? I can remember something about having to convert the fraction when you get rid of the -1 to get 1 over but I'm not sure.

Thanks to anyone who can help, I'm preparing for a maths exam in a few weeks time.

2007-12-22 11:15:44 · 7 answers · asked by azuradragonfly 1 in Mathematics

2007-12-22 11:15:28 · 12 answers · asked by Anonymous in Astronomy & Space

Through hubble, we see images of galaxies very far away from earth (million &billion light years). So the images we are seeing are how those galaxies would have looked like million & billion yrs ago.

But how do we know that those galaxies exist right now?

2007-12-22 11:15:04 · 12 answers · asked by jadooshtick 1 in Astronomy & Space

why don't they refere to them as strong or something like that. Are we suppose to look up to experience a high wind?

2007-12-22 11:13:11 · 5 answers · asked by BC 2 in Weather

Physics...doing research on Albert Einstein

2007-12-22 11:09:16 · 3 answers · asked by Einstein Freak 2 in Physics

Please give me a scientific answer no answers less then 3 sentences please

2007-12-22 10:57:46 · 4 answers · asked by Fan Of Obama 1 in Chemistry

Scienntists say it is infinite,but have they ever been able to prove it?they dont have a telescope strong enough to see that far!!!

2007-12-22 10:54:49 · 19 answers · asked by snuffylover4 2 in Astronomy & Space

earth its over please look at this model http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2007%20WD5&orb=1
nasa has not factored in that the 2007wd5 will just nick mars throwing it into new orbit we are doomed well i thought of it first
mario garcia 12-22-2007 watch will it be true in janury 30 2008 when nicks the orbit? will i be right

2007-12-22 10:50:28 · 5 answers · asked by mariojr72 2 in Astronomy & Space

2007-12-22 10:50:02 · 1 answers · asked by jones 1 in Chemistry

Only the clever mathemeticians will get this one....

2007-12-22 10:49:53 · 13 answers · asked by Adam H 1 in Mathematics

what could you do to figure out your exact genotype?

2007-12-22 10:45:38 · 3 answers · asked by ME 2 in Biology

Out of the characteristics listed below, select the ones that are common to MARINE mammals ONLY. Please help.


Warm-blooded
Blubber layer
Streamlined bodies
Breathe air
Bear live young
Nurse young with milk
Stay underwater longer
Store extra oxygen in muscles

2007-12-22 10:45:35 · 2 answers · asked by elektrapink09 2 in Biology