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Science & Mathematics - 13 October 2006

[Selected]: All categories Science & Mathematics

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

Hi,I want to know what kind of stuff can you build with a computer engineering diploma/degree?Can you build like cell phones,PDAs and stuff like this?And what can you build with the knowledge of microelectronics?Answers from engineers preferred.Thanks

2006-10-13 04:53:55 · 3 answers · asked by dude 1 in Engineering

I heard on the radio that the south didn't get hurricanes because of the desert winds. Does anyone know for sure?
We are thankful for any reason.

2006-10-13 04:52:54 · 3 answers · asked by anne_9268 3 in Weather

A sample of zinc metal was reacted with an excess of hydrochloric acid.


Zn(s) + 2HCl(aq) ==> ZnCl2(aq) + H2(g)




All of the zinc reacted, and the hydrogen gas was collected over water at 24C; the barometric pressure was 755 mmHg. The apparatus was similar to that shown in Figure 5.20, but the level of water inside the tube was 31.0 cm above the level outside the tube. If the volume of gas in the tube is 21.4 mL, how many grams of zinc were there in the sample? Do not enter unit. The density of Hg is 13.596 g/mL and the density of water is 1.000 g/mL.

2006-10-13 04:52:44 · 2 answers · asked by Anonymous in Chemistry

0

An aqueous solution of ammonium nitrite, NH4NO2, decomposes when heated to give off nitrogen, N2.




NH4NO2(s) ==> 2H2O(g) + N2(g)




This reaction may be used to prepare pure nitrogen. How many grams of ammonium nitrite must have reacted if 3.61 dm3 of nitrogen gas was collected over water at 24C and 96.5 kPa?

2006-10-13 04:51:58 · 2 answers · asked by Anonymous in Chemistry

2006-10-13 04:42:51 · 8 answers · asked by Anonymous in Geography

If so, what is it. 10 points for the first one to answer!!!

2006-10-13 04:37:58 · 5 answers · asked by Anonymous in Physics

sisam tree is a timber value tree mainly found in asia. But I want the details

2006-10-13 04:36:56 · 4 answers · asked by dick 1 in Botany

2006-10-13 04:35:33 · 18 answers · asked by JUSTIN M 1 in Zoology

2006-10-13 04:32:09 · 7 answers · asked by kolita94 1 in Mathematics

companies that supply robots to indistries only in indiafghhhhhh

2006-10-13 04:31:17 · 1 answers · asked by Anonymous in Engineering

explain work please

2006-10-13 04:29:38 · 8 answers · asked by nc.bowerman@sbcglobal.net 1 in Mathematics

please do not say GOD.

2006-10-13 04:25:23 · 6 answers · asked by Steven A 1 in Other - Science

I'll explain:

Let’s say Joe completes an average of 500 units at 1 day turnaround time for the month of January. For the month of February, his volume increased to 800 units and his turnaround time also increased to 1.6 days. Then in March, the volume decreased to 400 units for the month and his turnaround time was at 1 day.

How do I figure out the increase or decrease of his performance? Did his increase/decrease in volume match the increase/decrease in his turnaround time?

2006-10-13 04:21:19 · 1 answers · asked by wasn't going 2 3 in Mathematics

please answer by sunday afternoon

2006-10-13 04:20:21 · 11 answers · asked by dhsbarbs2004 1 in Mathematics

2006-10-13 04:19:35 · 8 answers · asked by Anonymous in Botany

When it rises it's bright yellow, then when it's in the middle of the sky it's grey/white. So why is it yellow when it rises?

2006-10-13 04:19:09 · 9 answers · asked by Anonymous in Astronomy & Space

Is it a chemical reaction or what?

2006-10-13 04:18:20 · 5 answers · asked by essegrill 1 in Medicine

i'm not understanding why while measuring a.c . power when current is reversed in negative half cycle,the direction of the deflecting torque produced remains constant. and not very clear with production of controlling torque.

2006-10-13 04:17:58 · 4 answers · asked by Anonymous in Engineering

7

Why is the sky blue?

2006-10-13 04:16:11 · 9 answers · asked by dsgg 2 in Astronomy & Space

2006-10-13 04:10:03 · 18 answers · asked by Justin L 2 in Astronomy & Space

is focused on the train.

The diagram that comes with the problem is a right triangle with the distance from the camera to the train as the hypotenuse. The question is:

How fast is the camera rotating (in radians/min) at the moment when the train is 1 km from the camera?

2006-10-13 04:09:47 · 4 answers · asked by ben_ev0lent 1 in Physics

X -> N
~X -> P
( M ^ N) -> Q
~Q
M
_____________
therefore P

I'm not even sure where to start :( Any help would be greatly appreciated!!!!!

2006-10-13 04:09:44 · 5 answers · asked by Anonymous in Mathematics

2006-10-13 04:09:24 · 15 answers · asked by lcd 2 in Medicine

Calculate the volme of oxygen, measured at room temp and pressure, which can be obtained by this reaction from 1.7g oh hydrogen peroxide.

Reaction: 2H202 --> 2H2O + O2 (its balanced)

My answer is 0.6 cm3. My book says the answer is 600cm3. Why? Or is the book wrong?Its been wrong before so...

2006-10-13 04:08:43 · 2 answers · asked by Chocolate Strawberries. 4 in Chemistry

That what if when we are sleeping/dreaming that is reality and then when we are awake that we are really dreaming?
I know its weird and confusing but it was just a thought.

2006-10-13 04:07:45 · 16 answers · asked by Anonymous in Other - Science

2006-10-13 04:07:17 · 14 answers · asked by Anonymous in Biology

Please may i have anyone's opinion on the Bermuda Triangle? Do you belive in it and why? How and why do ships and planes dissapear ?

2006-10-13 04:06:55 · 8 answers · asked by Anonymous in Botany

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