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Science & Mathematics - 12 January 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

is it a government conspracy,aliens,or justa weather baloon

2007-01-12 03:51:46 · 9 answers · asked by silverstreak 1 in Astronomy & Space

Maybe at least the engine block would make it to earth as a fireball and what would be the splash size then? Would it create a big enough wave in a giant lake, like as big as the Great Salt Lake?

2007-01-12 03:51:38 · 9 answers · asked by dreamelixir4453 3 in Physics

1. How many grams of sodium chloride are required to react with 196 grams of H2SO4?

2. How many grams of hydrogen are produced by the action of hydrochloric acid on 50 grams of zinc?

3. How many grams of copper oxide may be reduced by 10 grams of hydrogen?


Can you hlep me to understand how to do this?
point me in the direction of getting some help?
or show me how to figure out the answer.

2007-01-12 03:48:13 · 4 answers · asked by Amber Elizabeth 1 in Chemistry

the lewis dot diagram or shape of this element

2007-01-12 03:47:02 · 2 answers · asked by neto_jojo 1 in Chemistry

2007-01-12 03:46:58 · 12 answers · asked by snehal k 1 in Engineering

happened 2 me this morning! I found myself outside calmly warning them not 2send me thoughts & images. I don't recall leaving
my house 2 go outside. I don't recall putting my coat on. I don't recall closing door &locking it after closing it! I must've done all that in a telepathic state. It must've been telepathic attack of some kind that caused me 2 go out. I've never sleep walked before!
The outside cold made me aware where I was and what I was doing.. I even had a knife with me. Good thing the cold made me aware.. who knows ? the telepathic attacker would've had me do with that knife? It was dark this morning too & I'm not type that goes outside in the dark! After I got back into my residence.. Someone said I'm Impressed. & shortly after I heard the words He's Easy!
Well I will just have to sleep in a helter skelter pattern so telepathy attackers don't know when I'm sleeping! Scarey someone controlling me! Has this happened to U or something like this?

2007-01-12 03:46:34 · 2 answers · asked by Anonymous in Earth Sciences & Geology

I want some help from any instrument or electrical or electronics engineer. I have this electrical diagram on this site, http://a.domaindlx.com/santoshndandekar/q.JPG which has one problem and I’m quite unable to solve it. This is a diagram of a system which has one motorized damper. There are two push buttons to open and shut the damper. Motor is 24 volts AC and a transformer is used to get this voltage from single phase 230 volts AC line. Now, I have done connections as per this diagram and this whole unit is not functioning. The relay in the circuit makes noise and most important thing is that, it makes noise like trrrrr. One more thing, green push button which is NO (normally open) shows continuity which it should not show, that means there is some fault which I cannot see. Please help me to sort out this.

2007-01-12 03:46:23 · 3 answers · asked by Pirate of the Bassein Creek 4 in Engineering

i have five questions.. can u help wiv ny of them?
1) What are the imediate effects of a volcano errupting?
2)On average how many people would die from a strato volcano erruption?
3) How do volcanoes effect homes, jobs and transport?
4) What are the long term effects?
5) What are the global effects?

2007-01-12 03:39:49 · 7 answers · asked by Anonymous in Earth Sciences & Geology

I am getting ready to take statistics this semester in college. I have the opportunity to take it on-line, which would be a great time saver. However, I am pretty bad at math. Some of my friends have recommended taking it in the classroom because I will learn better that way...another friend has advised me to take the on-line class and just work with a tutor 1-2 hours per week. What do you guys think?! And can you give me a brief description of what I can expect in this class?

2007-01-12 03:39:41 · 5 answers · asked by Uebermaedchen 2 in Mathematics

rewrite the fractions with their LCD.

1. 4/3x - 6y , 1/ 5x - 10y

2, 3/c^2 - 6c , 5/c^2 + 6c

THANKS!!!!!!!!!!!!! :)

2007-01-12 03:39:21 · 4 answers · asked by Anonymous in Mathematics

2007-01-12 03:38:56 · 28 answers · asked by Anonymous in Geography

2007-01-12 03:37:38 · 13 answers · asked by Hunny b 4 in Astronomy & Space

we did not get this concept till now.im 8th grade

2007-01-12 03:37:13 · 7 answers · asked by srinu710 4 in Mathematics

Given a triangle PQR, right angled at P. PM is a perpendicular drawn from P to hypotenuse QR. Prove that PR^2 = PQ^2 + QR^2 - 2 QM x QR

2007-01-12 03:35:52 · 3 answers · asked by Malfoy vs Potter 5 in Mathematics

looking for software that can solv all type of engineering maths ,anything maths

2007-01-12 03:35:34 · 5 answers · asked by jonadab j 1 in Engineering

This is the act of Plagiarism you cannot copy other people work and say this work is your own

2007-01-12 03:31:15 · 8 answers · asked by Anonymous in Biology

various dimensions of information technology at a glance and its boom as compared with other industries in india, thereby change in the life styles as like day & night variation, ...etc

2007-01-12 03:31:14 · 1 answers · asked by srinivasa murthy s 1 in Engineering

2007-01-12 03:30:10 · 23 answers · asked by PCMCPPE 1 in Biology

Question 1:
What is the height of a triangle with base 10.5 cm and area 96.075 cm2?
Enter a decimal number only.




cm
Question 2:
What is the length of the base of a triangle with height 13 cm and area 130 cm2?




cm


Question 3:
What is the height of a triangle with base 17 mm and area 93.5 mm2?




mm


Question 4:
What is the length of the base of a triangle with height 8 mm and area 44 mm2?




mm


Question 5:
What is the length of the base of a triangle with height 14.2 mm and area 173.24 mm2?
Enter a decimal.



mm


Question 6:
What is the length of the base of a triangle with height 26 mm and area 195 mm2?




mm


Question 7:
If the length of a rectangle is 9 1/3 m and the width is 2 2/3 m, what is the perimeter of the rectangle?




m


Question 8:
If the width of a rectangle is 4 1/3 m and the perimeter is 9 7/15 m, what is the length of the base of the rectangle?
Enter a fraction.




m


Question 9:
What is the base of a triangle with height 14 m and area 56 m2?




m


Question 10:
What is the height of a triangle with base 29.7 mm and area 201.96 mm2?

Enter a decimal.




mm


Question 11:
Amber drove to Connor's house at 43 mph. Connor's house is twenty-six miles away. How long did it take her to arrive at Connor's house? Express the following as a fraction.




hour
Question 12:
Samantha drove to Anna's house at 54 mph. Anna's house is sixty-eight miles away. Samantha arrived at Anna's house at 4:45 p.m. How long did it take her to get there (enter a fraction)?




hours
Question 13:
Timothy drove to the mall, which is ten kilometers away. It took him 1/3 hour to arrive. What was his average driving speed?




kph
Question 14:
Last year, Anna's speed in a bike race was 6 kph. She finished in 9 hours. What must be Anna's average speed if she is to finish the same distance in 4 hours this year?
Tip: use last year's information to get the race distance. Then use this with the new information.




kph


Question 15:
The distance from Philadelphia to Atlantic City is 100 miles. How long will it take to get there at 45 mph?
Please answer as a decimal rounded to the tenths place.



hours

2007-01-12 03:29:01 · 4 answers · asked by me1026 1 in Mathematics

Explain how we can live there.

2007-01-12 03:28:01 · 10 answers · asked by Angry_Suzette 1 in Astronomy & Space

2007-01-12 03:27:57 · 2 answers · asked by ramanujan g 1 in Engineering

2007-01-12 03:22:01 · 8 answers · asked by Anonymous in Mathematics

2007-01-12 03:20:53 · 2 answers · asked by FOREVER AUTUMN 5 in Engineering

If the comunity was so concerned as it says it is about global warming . Laws would be passed making it manditory that people switch to solar panels and wind generators to power thier homes.
I dont believe that global warming should be an issue, to anyone due to the fact that there are alternatives out there but we the slaves continue to consume fossil fuels in the form of petroleum products,to power our cars and coal to fire our electric generators not to mention uranium, which should be left under the surface for eternity, that fuels the nuclear powerplants. Nothing that they tell us is clean, is clean. Its money. We all see what is happening yet shield our eyes from the truth of whats happening, we all know we are being led around by our noses. Why are people refusing to purchase other alternatives to fossil fuels when every one knows ...ahhh ta hell with it...i quit, i really dont give a @#%^*( !! go out and burn a tire if it makes you happy. dont answer i dont care.

2007-01-12 03:19:35 · 5 answers · asked by madeawareofyou 2 in Earth Sciences & Geology

there has been late hibernating bears very warm winters and a hole lot of other stuff but we are just sitting here and complaining and not doing anything about it we are just making it worse

2007-01-12 03:16:27 · 12 answers · asked by twilight_mermaids 2 in Weather

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