Science & Mathematics - 11 December 2007

What is one of the disadvantages in travelling by an airplane from one place to another place?

These are the factors which affect choice of transportation type: time, distance and environmental impact.
Did I categorized these correctly?

TIme: An important parcel going 700 km, Students going to school 3 km away

Distance: Cars made in Italy to sell in Canada

Environmental impact: Coal being moved 2000 km

2007-12-11 10:19:14 · 2 answers · asked by cherry9595 1 in Geography

Which fossil fuel takes the longest time to form?
a) oil
b) black coal
c) brown coal
d0 natural gas?

2007-12-11 10:18:25 · 2 answers · asked by Anonymous in Earth Sciences & Geology

A. mP; cP
B. cP; mT
C. mT; cP
D. mT; mP

2007-12-11 10:13:40 · 1 answers · asked by Anonymous in Geography

3 Guys walked into a Motel for the night, the rate was $300 for the room, so the three men paid $100 each...

Two hours later, the owner had realised that he had overcharged them by $50, that the room should of been $250. He called the bellboy up and gave him the $50 to give to the guys. While the bellboy was walking up he thought to himself " I'll put $20 in my pocket and give the guys back $10 each "...

By giving back the $10 each, the men had paid $90 each for the room, making the total cost of $270 for the room, but the bellboy still has the $20 in his pocket, making the total $290. Were the original payed figure was $300.

3 x $100 = $300 (old Price)
$10 was given back for overprice making room $90 each
3 x $90 = $270 (new price)
plus the $20 in bellboys pocket
equalling $290..... WHERE DID THE OTHER $10 GO TO??

2007-12-11 10:09:40 · 5 answers · asked by Damo 5 in Mathematics

2007-12-11 10:07:38 · 10 answers · asked by David 2 in Astronomy & Space

Going into the final exam ,which will count as two-thirds of the final grade,Mike has test scores of 86,80,84,90. What score does mike need on the final in order to earn a B which requires an average score of 80?

Im not sure how to set up the equation..please help if you can.

2007-12-11 10:05:40 · 4 answers · asked by Baby Jet 2 in Mathematics

How has the “image” of the CMBR changed over the past forty years?

2007-12-11 10:04:03 · 3 answers · asked by Tafe 1 in Astronomy & Space

Can you please help me find the following: what familys does the element platinum belong to? What are the number of electrons, protons, and nutrons in the element platinum?
ANd the elements characteristic properties including, but not limited to, its density boiling and melting point s

2007-12-11 09:59:02 · 4 answers · asked by Bambi'sbff 2 in Chemistry

2007-12-11 09:58:09 · 3 answers · asked by makelovenothate 2 in Mathematics

I was looking at a photocopied page from a book of future predictions and among of the future events predicted by futurologists (scientists who study the future) was terrorists- and I mean Al-Qaeda-type bombers and criminals- seizing and dominating all available gold, diamonds, and metals (i.e., iron, nickel, copper). Right now, I'm asking you questions:
1.) What would happen if terrorists take over the world's gold, diamonds, and metal resources?
2.) How would terrorists seize the above mentioned natural sources?
3.) Would this kind of terrorist takeover affect the world's economy?
4.) Is there, or are there, any ways to prevent terrorists from seizing our metal sources necessary for our industries?

2007-12-11 09:57:26 · 1 answers · asked by Erik G 4 in Earth Sciences & Geology

Time in our sense is really an illusion! All is happening at once. There has to have always been something for there to be anything. If all began with big bang even, something made the big bang. Which means that time goes back infinitely (as there always was something)!!! If time goes back infinitely there could not be a present as it would take forever for it to become now and you can never wait forever so it can’t be now.

There for all is happening at once and time is an illusion!!!!!!!

What do you think? Does this make sense to you or am I just crazy? I actually kinda thought I had a break thourgh with this but everyone I tell it to just stares at me blankly :(

2007-12-11 09:57:13 · 3 answers · asked by Robert R 3 in Other - Science

2007-12-11 09:52:10 · 11 answers · asked by Nagisa 1 in Biology

I have an Idea of what the answer may be, but I want to see if I'm correct.

ok.. well the questions is.
If you have the numbers (1,2) (3,4,5) (6,7,8,9) (10,11,12,13,14) and you keep following the pattern, what will the last number be if repeated to the 100th time??

2007-12-11 09:51:58 · 8 answers · asked by yoyoguy21 1 in Mathematics

Need it for biology.

2007-12-11 09:51:54 · 3 answers · asked by Anonymous in Geography

3. What is the capital of the island nation off the coast of East Asia through which the Tropic of Cancer passes? Draw and label the capital, island and Tropic of Cancer.

4. Which term does not belong: The United States, Russia or Brazil? Why?

5. Although plateaus and lowlands cover much of Africa the Continent does have some mountains. What is the name of the mountains in Northwestern Africa?

6. Which ocean borders Australia's western coast?

2007-12-11 09:51:42 · 3 answers · asked by Little Princess 1 in Geography

its about genetics

please help me this is for my AP bio
orange dragon are dominant over green dragons. you have an orange one and need to know wheter it homozygous or heterozygous. If you had an unlimited amount of dragons whose genotype you absolutely knew and could make any kind of cross breeding you wish how would you breed your pet orange male dragon to determine with absolute certainty his genotype.

2007-12-11 09:51:35 · 3 answers · asked by sportygirly2010 2 in Biology

2007-12-11 09:50:45 · 15 answers · asked by Nagisa 1 in Biology

why or why not?

2007-12-11 09:48:26 · 7 answers · asked by Anonymous in Chemistry

how far do they travel in a year in miles

2007-12-11 09:45:52 · 2 answers · asked by alcina0710@sbcglobal.net 1 in Geography

A) 5sqrt6
B) 6sqrt5
C)3sqrt10
D)36 sqrt 5

2007-12-11 09:45:43 · 3 answers · asked by Anonymous in Mathematics

letter

I believe this requires the pigeon hole principle and would like a solution and explanation.

2007-12-11 09:44:18 · 1 answers · asked by Anonymous in Mathematics

2007-12-11 09:43:59 · 1 answers · asked by Anonymous in Biology

Please, do not answer if you are not sure. It is for a homework assignment. Thanks.

2007-12-11 09:43:53 · 2 answers · asked by James C 2 in Biology

I need help anwsering two questions.

1.) How is the formation of mountians belts related to tectonic plates?

2.) How could it be possible for a mountian range to be continually pushed up but not getting any higher?

2007-12-11 09:43:50 · 1 answers · asked by Anonymous in Earth Sciences & Geology

If you could be a time traveler what time and or place in time would you go to and why?

2007-12-11 09:43:21 · 2 answers · asked by Anonymous in Astronomy & Space

What is dry ice, because i need some fun my own reasons, and i know i can use it but i want to know why its so special

2007-12-11 09:42:57 · 16 answers · asked by Anonymous in Chemistry

2007-12-11 09:42:02 · 1 answers · asked by Anonymous in Engineering

What?

2007-12-11 09:38:04 · 6 answers · asked by Alex W 2 in Mathematics

whats the difference between an artery, a capillary and a vein?

2007-12-11 09:37:52 · 5 answers · asked by Elizabeth M 1 in Biology

The directions say:
Solve each system by elimination. Check your answer after. Also solve for X AND Y

1. x+5y=-7
-x+2y=-8

2. 3x+y=-26
2x=y=-19

3. x+3y=-14
2x-4y=32

4. 4x-y=-5
-2x+3y=10

5. y-3x=11
2y-x=2

6. -10x+y=0
5x+3y=-7

thanks!

2007-12-11 09:37:45 · 5 answers · asked by Anonymous in Mathematics