Science & Mathematics - 8 August 2007

for example, in vacuum chamber drying saturated steam is used rather than using superheated or unsaturated steam.

2007-08-08 19:44:58 · 3 answers · asked by ek_shaikat 1 in Engineering

I've seen storms where it's just lightning and thunder going on for ages, but no rain. Why doesn't it rain as well?
Or, why are there some storms where there is lightning, rain, and thunder and some where there is just lightning and thunder?

2007-08-08 19:36:16 · 7 answers · asked by Anonymous in Weather

2007-08-08 19:34:03 · 2 answers · asked by Anonymous in Biology

2007-08-08 19:32:33 · 11 answers · asked by Anonymous in Mathematics

2007-08-08 19:31:11 · 34 answers · asked by abdul_khalieq 1 in Geography

2007-08-08 19:29:43 · 3 answers · asked by mapureed 1 in Mathematics

2007-08-08 19:29:42 · 2 answers · asked by vamsi k 1 in Chemistry

When there is a power outage solar powered street lights would be more senseable to have enabling us to still be able to see the street and eventually save money. And help prevent looting.

2007-08-08 19:29:12 · 13 answers · asked by hotchotlver 3 in Engineering

Differentiate with respect to x

a) [5tan4x]/4

b) In(3x-2/6x²)

2007-08-08 19:27:22 · 3 answers · asked by th3one101 2 in Mathematics

2007-08-08 19:23:17 · 3 answers · asked by Anonymous in Biology

2007-08-08 19:22:29 · 2 answers · asked by Zapking 2 in Mathematics

A pool filling service charges $2.00 per cubic meter of water for the first 300 cubic meters and $1.50 per cubic meter of water after that. At this rate, how much would it cost to have the service fill a rectangular pool of uniform depth that is 2 meters deep, 20 meters long, and 15 meters wide?

2007-08-08 19:17:41 · 7 answers · asked by Ann 3 in Mathematics

Jack did a study in which he looked at average frequency and length of words in a sentence. The average word frequency in his study was 11257 and sample size 50. another student disagreed and thought that the average word frequency was higher than the average word frequency a normal sentence should have. Jack find the average word frequency for a normal sentence 10666 occurrences per million and SD= 5000. jack finds his finding close to frequency and ignores the other student. Test hypothese using 2-tailed test and p less than .05. is jack right?

How do we do this ?

2007-08-08 19:17:06 · 1 answers · asked by aaachooooo 1 in Mathematics

if you could please tell me the average walking speed of a kid aswell please

2007-08-08 19:06:49 · 33 answers · asked by james Wilkins 1 in Physics

when it has cooled off enough it can go out and play in the sun for a bit longer.

2007-08-08 18:55:00 · 6 answers · asked by Gruntled Employee 6 in Astronomy & Space

2007-08-08 18:45:39 · 4 answers · asked by Anonymous in Mathematics

If 350 mg of a radioactive element decays to 250 mg in 36 hours, what is its half-life?

2007-08-08 18:35:21 · 3 answers · asked by Anonymous in Chemistry

2007-08-08 18:24:25 · 13 answers · asked by foxfoxcar 1 in Geography

more theories the better

2007-08-08 18:18:09 · 10 answers · asked by Anonymous in Geography

the more detail the better

2007-08-08 18:16:08 · 4 answers · asked by Anonymous in Geography

2007-08-08 18:15:40 · 8 answers · asked by preethi shreeya 1 in Physics

Two tuna boats leave the same port traveling in opposite directions along the west coast of the United States. One boat travels 5 miles per hour faster than the other. At the end of one day of travel, they are 1080 miles apart. What is the speed of the faster boat?

A. 20
B. 25
C. 30
D. 35
E. 40

2007-08-08 18:12:00 · 4 answers · asked by Moohlah. 2 in Mathematics

After watching the secret (which i think is great) i have been trying to visualize but have trouble staying focused. Then i found this site secretvisionposters.com that say it can help you focus. What do you think? Any one tried them?

2007-08-08 18:10:15 · 4 answers · asked by Debbie L 1 in Other - Alternative

2007-08-08 18:03:58 · 3 answers · asked by deepak_8584 1 in Engineering

please include logical justifications whether you agree or disagree with this theory...thanks :)

2007-08-08 18:02:08 · 36 answers · asked by ~ ANGEL ~ 5 in Biology

Does anyone know of a website to order RX phentermine without a script and one that accepts a mastercard?

2007-08-08 17:59:56 · 0 answers · asked by rugratsmom2002 1 in Medicine

here it goes..
1-Asia
2-Europe
3-Africa
4-Oceania,and no,Australia is NOT a continent is a country in the continent of Oceanis.
5-Antartica
6-America
* NO there is no such continent named "North America" or "South America" what so ever.
*There is one continent named America,which is divided in three sections:
North America(Mexico,Canada,U.S.A.)
Central America
South America.

2007-08-08 17:59:36 · 18 answers · asked by Anonymous in Geography

we are guinea pigs to the aliens. aliens exist and we are a profuct of them.
Everyone is familiar with the supercontinent that existed billions of years ago on earth consisting of all the continents put together and which slowly separated to give us the continents we have today. I believe there was a superplanet which existed even more billions of years ago consisteng of all 9 planets (mercury, venus, earth, mars, saturn, jupiter, uranus, and pluto and whatever the other one was) - all 9 planets were attached as ONE planet and something struck this super planet years ago dividing it into the 9 planets as we know them today. The moons were part of the planets they most closely orbit. our moon was once where the atlantic, pacific, or indian ocean are today(probably the pacific ocean because when you move our continents to form the supecontinent the gap where the moon would have come from would be where the pacific ocean is today). Why haven't scientists acknowledged this possibility?

2007-08-08 17:59:30 · 5 answers · asked by xfileaddict1969 2 in Astronomy & Space

2007-08-08 17:57:36 · 2 answers · asked by val 2 in Engineering

Most multiply-charged anions have less-charged versions stable in more acidic solutions, including the chromate ion CrO4--. However, most such anions are partially acidified simply by adding one or more hydrogen atoms to them, such as HCO3-, HPO4-- and H2PO4-, HSO4-, and so on. The partially acidified chromate ion is different in this respect, where two of the basic Cr2O4-- ions combine to form a Cr2O7-- ion rather than two HCrO4- ions implied by the older name for the dichromate ion "bichromate." Who, when, and how was this anomalous behavior discovered and what chemical consequences does it have?

I am also looking for references for more detailed info. These must be provided for "best answer."

2007-08-08 17:55:29 · 4 answers · asked by devilsadvocate1728 6 in Chemistry