Science & Mathematics - 7 July 2006

2006-07-07 07:20:58 · 13 answers · asked by ancient_wolf_13 3 in Physics

When you say "nothing", you are talking about something, but you still refer to it as nothing. But even though it is nothing, it still takes up space, so would nothing be an actual form of matter, or would it still just be the absence of space?

2006-07-07 07:18:00 · 10 answers · asked by Anonymous in Physics

I have an elevation opening of size 7X5 square foot,which is nearly at 10 feet above from ground. The air velocity will be around 30Kmph. If I cover that gap with a glass of 8 mm thickness, will the glass can withstand by the pressre exerted by wind flow of 30kmph? How to calculate the force on glass of 35 square feet, by wind with speed 30kmph.

2006-07-07 07:17:07 · 2 answers · asked by phaneendra_50 1 in Physics

It will help me in my Master research..

2006-07-07 07:14:41 · 1 answers · asked by Taha K 2 in Chemistry

2006-07-07 07:13:22 · 9 answers · asked by your_ma_was_here 1 in Mathematics

2006-07-07 07:10:12 · 5 answers · asked by ? 2 in Other - Science

If you believe in the big bang, where did it come from (according to the actual theory)? Does that make it perpetual energy?

2006-07-07 07:09:30 · 8 answers · asked by Aloofly Goofy 6 in Other - Science

2CO+O2===>2CO2
how many gram of carbon dioxide form if 17.00 gr of carbon monoxide are combined with excess oxygen.

2006-07-07 07:08:42 · 9 answers · asked by Anonymous in Chemistry

with Yes,then i hope it blows up right after 1,2,3 thats a go.I feel as though there are to many hungry and homeless people on this planet for the goverment to spend money on space exploration.What Do you think???...tom science

2006-07-07 07:06:34 · 18 answers · asked by Anonymous in Astronomy & Space

2006-07-07 07:05:39 · 19 answers · asked by Dirty Rob 3 in Biology

smallest bone in human body

2006-07-07 07:05:30 · 13 answers · asked by Anonymous in Biology

2006-07-07 07:03:12 · 18 answers · asked by andrew b 1 in Astronomy & Space

university

2006-07-07 07:02:38 · 1 answers · asked by Archana K 1 in Zoology

after balancing the following equation, determine the coefficient of oxygen
__ C2H6+___O2===>__CO2+__H2O

2006-07-07 07:01:31 · 4 answers · asked by Anonymous in Chemistry

2006-07-07 06:57:46 · 23 answers · asked by grubio06lare 1 in Astronomy & Space

2006-07-07 06:56:26 · 4 answers · asked by polyflavors 1 in Mathematics

In a 1-g field, it would be hard to hit a ball made of solid metal very far. Would it be different in lower gravity? I'm thinking yes, but want to make sure. And I guess I'd have to have a solid metal bat, too, right? Even in lower gravity, I'd think hitting a metal ball would splinter a wooden bat.

By the way, thanks everyone for the great answers yesterday to my other question.

2006-07-07 06:55:53 · 10 answers · asked by MissNormaD 1 in Physics

A National Geographics article, published in 2006, claims that about 200k years, or about 8,000 to 10,000 generations ago, there were 200 or so first modern humans in Africa. Any more data on this?

2006-07-07 06:55:04 · 7 answers · asked by Fredo 2 in Other - Science

Conciousness as in the mind. The universal mind. See G. Hegal maybee. It maybee that seeking a way out could be concieved as looking for love or perhaps lifestyle improvements. It may also mean actually looking for a way to travel space/time. Maybee i'm a dreamer but i'm not the only one.

2006-07-07 06:51:06 · 4 answers · asked by rvn 1 in Astronomy & Space

2006-07-07 06:50:17 · 8 answers · asked by lindell105 1 in Astronomy & Space

Are you afraid to reveal any experiences that you have in the past with extraterrestials because some people thinking that we are crazy?Don't be afraid,Iam one of their choice ones.Do you want me I help you to understand more about this situation?I know the answers and I need to help humans to change their way of living.

2006-07-07 06:50:08 · 11 answers · asked by www.galaxies 2 in Other - Science

First person to answer science questions correctly will get 20 poins?
NOTE THIS IS NOT MY HOMEWORK. SCHOOL FINISHED TWO WEEKS AGO FOR ME. I JUST WANT TO SEE WHAT OTHER PEOPLE GET. I GOT A 7 OUT OF 9.
12. Many cooking pots have hard plastic or wooden handles. What is the reason for this?

a. The handles are made from a good conductor of heat so that the heat is drawn away from the pan to protect your hands.
b. The handles are made from a poor conductor of heat so that the heat cannot be drawn into your hands as easily.
c. The handles are made from different materials to make use of the differing chemical properties to block the transfer of heat.
d. When the handles heat up, they expand more than the pot thus allowing the handles to radiate heat away more effectively.

13. What does it mean to say that a material has a high specific heat?

a. It means the material is a poor conductor of heat.
b. It means the material is a good conductor of electricity.
c. It means the material can get very hot compared to other materials.
d. It means the material readily absorbs and releases energy.

14. How can the specific heat be characterized for a material that heats up quickly?

a. It has a low specific heat.
b. It has a high specific heat.
c. It is impossible to make this judgment.

15. What mass of ethyl alcohol will give up 33,000 J of energy as it cools from 27°C to -3°C?

a. 2.41x109kg
b. 0.566kg
c. 1.92×109kg
d. 0.453kg

Questions 16-19

A 75 g chunk of metal is heated to 100°C and then dropped into 0.5 kg of water initially at 22°C. After a short time, the water reaches a final temperature of 23.1°C.

16. How much heat energy does the metal transfer to the water?

a. 345 kJ
b. 345 J
c. 2302 J
d. 24.5 kJ

17. What is the final temperature of the chunk of metal?

a. 23.1°C
b. 22°C
c. 92.7°C
d. 54.9°C

18. What is the specific heat of the metal?

a. 399
b. 27,900
c. 130
d. 377


19. The chunk is most likely made of which type of metal?

a. brass
b. lead
c. tin
d. copper

20. In the old days, it was common to bring a hot object into bed with you on a cold winter night. Which would be better: a 10 kg hot water bottle or a 10 kg iron block, both at the same temperature?

a. The water bottle because water has a higher specific heat.
b. The water bottle because iron has a higher specific heat.
c. The iron block because water has a higher specific heat.
d. The iron block because iron has a higher specific heat.

2006-07-07 06:48:57 · 5 answers · asked by Max M 1 in Physics

eg. phone
1 2 3
4 5 6
7 8 9
0

keyboard/calculator
7 8 9
4 5 6
1 2 3
0

2006-07-07 06:47:05 · 7 answers · asked by tracegeezer 2 in Mathematics

In simplicity, 'Circular Reasoning' is to assume a truth, and confirm that assumption with evidence that is also only true if the assumption is.

There is a theory that homsexuality is genetic. Not to the fault of anyone, but such a theory can hardly be proven by tangible evidence. However, some have "discovered" evidence based on circular reasoning. For instance:

- Because a certain percentage of todays population is "genetically" homosexual, this same percentage of people were homosexual throughout time, (and perhaps repressed by social standards). However, this assumes, not proves, homosexuality is genetic.

- X% of all identical twins to homosexuals are homosexual. However, most twins are close and influence one another. Hardly tangible evidence.

- There is homosexuality in nature. However, most animals thrive on instinct and competition. Failure to find a suitable and willing mate could lead animals to unnatural sexual behavior.

2006-07-07 06:45:00 · 5 answers · asked by man_id_unknown 4 in Other - Science

What is the record amount of hurricanes or typhoons in one season? If they name them in the order of the alphabet, which hurricane has the highest alphabetical value? (if one can put it that way). If there have been more than 26 hurricanes in a season, do they start with the letter "A" again?

2006-07-07 06:43:57 · 8 answers · asked by Hrodulf 2 in Weather

2006-07-07 06:43:47 · 16 answers · asked by utkarsh 1 in Chemistry

We see the moon as above us and there is a point where if you are apporaching it,it is suddenly below you,what is that spot called and how does it come about,this a question for the likes of Neil Armstrong who must have had this experience.

2006-07-07 06:43:12 · 8 answers · asked by Anonymous in Astronomy & Space

scientist say that just before the big bang that all the matter in existance was smashed togeather in a tiny area the size of the point of a neddle. so what exactly was surrounding that matter. and if it is anything, how far does that nothingness expand?

2006-07-07 06:40:48 · 18 answers · asked by Anonymous in Astronomy & Space

2006-07-07 06:40:45 · 12 answers · asked by Mansee 1 in Geography

2006-07-07 06:40:32 · 14 answers · asked by QuakerGal 2 in Medicine