Science & Mathematics - 11 October 2006

2006-10-11 05:04:11 · 7 answers · asked by smitty 3 in Weather

2006-10-11 05:04:05 · 2 answers · asked by SmoOth 1 in Chemistry

simplify my answer...how is that possible, the dang thing is a mile long?

2006-10-11 05:03:16 · 10 answers · asked by Anonymous in Mathematics

2006-10-11 05:02:58 · 4 answers · asked by richeboi 2 in Mathematics

2006-10-11 05:02:58 · 2 answers · asked by Tarshall J 1 in Biology

2006-10-11 04:54:52 · 19 answers · asked by Anonymous in Engineering

my son is doing a science project.

2006-10-11 04:53:15 · 19 answers · asked by Anonymous in Earth Sciences & Geology

Can anyone supply me with information on hydraulics and hydraulic machinery, it is for an engineering project, which involves lifting a heavy item and i would like to get information on hydraulics which can be used in this situation.

2006-10-11 04:51:03 · 3 answers · asked by Hanif 3 in Physics

I am going into civil engineering but I can't decide if I want to do Structal or Enviremental.

2006-10-11 04:49:43 · 5 answers · asked by cjlambert05 1 in Engineering

2006-10-11 04:45:43 · 18 answers · asked by sarah w 1 in Weather

Can anyone actually explain to me how this mathematics question was does as I had it in an engineering test but couldn't do it, also could you explain it to me step by step, how to do log bases ect on calculator as I have no idea:
The power gain of an amplifier relates input power, Pi, to output power, Po, by;
Power gain= 10log(small 10) Po/Pi decibles (dB)
a) As part of the assesment of a new system you have been asked to find the power gain when Po=18W and Pi=300mW
B) you also have to find out what the output power will be if input power is 400mW and the power gain is 20dB.


Please may someone explain this to me step by step as it completely mindblows me, thanks to anyone who can help me it will be much appreciated.

Thanks everyone :)

2006-10-11 04:45:36 · 5 answers · asked by louie_ellis 1 in Mathematics

Gabe is 6 years younger than Mike
The sum of their age is 92
What is Gabe's age?

2006-10-11 04:40:14 · 11 answers · asked by SCHNITZEL 1 in Mathematics

I like many people make alot of typos when I type. However I noticed I make 3 major kinds. The first two I understand, I try to type faster than I can and I accidently skip letters or reverse two letter in order.
Sometimes though I skip whole words that I meant to type. What would cause this?
My only guess is that like that other mistakes, it is mostly just relsted to rushing but it seems more weird thatn just skipping letters or messing up spelling.

2006-10-11 04:38:34 · 4 answers · asked by abcdefghijk 4 in Other - Science

I belive in the evolution of man and animals. I'm wanting to know if this is it or will things change for us in the future. It maybe a stupid question but someone once said the only stupid question is the one not asked.

2006-10-11 04:37:04 · 15 answers · asked by wannabe a multimediaartist!!!! 2 in Biology

2006-10-11 04:34:23 · 4 answers · asked by Dewe dogg 1 in Physics

Anyone????

2006-10-11 04:33:21 · 31 answers · asked by Gettoblad 2 in Astronomy & Space

what are the main problems that occur due to misuse of anibiotics?

2006-10-11 04:32:58 · 11 answers · asked by 9929 3 in Biology

A buffer contains 0.309M of HF and 0.275M NaF.
The Ka of HF is 6.8*10^-4
What is the pH of the buffer?

How do I set this up? I know how to calculate the pH of a solution containing a weak acid and its conjugate base, how is this done differently or is it?

2006-10-11 04:31:15 · 3 answers · asked by Anonymous in Chemistry

I have Mg plus O = MgO or 2Mg plus O = 2MgO; which one is correct?
Then the one that is correct, added with water, so can it be Mg(OH)2 ??
Then i have water and i add oxygen, what will be the product?

2006-10-11 04:27:02 · 5 answers · asked by deathvirgen 1 in Chemistry

High of 6 with rain and wet snow today in Calgary.

2006-10-11 04:25:31 · 15 answers · asked by Anonymous in Weather

2006-10-11 04:23:27 · 10 answers · asked by Anonymous in Mathematics

2006-10-11 04:22:23 · 2 answers · asked by coach 1 in Other - Science

I believe it is synthesis because two substances are put together to form a new compound

2006-10-11 04:20:31 · 1 answers · asked by ghettoco 1 in Chemistry

is it Mg(OH)2

2006-10-11 04:17:19 · 6 answers · asked by ghettoco 1 in Chemistry

latitude longitude coordinates to utm conversions formulae required, to work with.iam using Magellan GPS which sends NMEA strings.i wanna develop the conversion tool.respond if anybody knows.

2006-10-11 04:17:06 · 1 answers · asked by Indian 1 in Engineering

im really confused..how do u get the ionisation energy/kJ mol-1???

2006-10-11 04:16:57 · 2 answers · asked by KC 1 in Chemistry

This is not a homework question this is praciting for a test and I need help please. ;)

2006-10-11 04:16:55 · 1 answers · asked by Jonathan A 2 in Mathematics

2006-10-11 04:14:00 · 10 answers · asked by brainyyy 1 in Chemistry

2006-10-11 04:10:20 · 7 answers · asked by Teresa A 1 in Mathematics

Can anyone actually explain to me how this mathematics question was does as I had it in an engineering test but couldn't do it:
The power gain of an amplifier relates input power, Pi, to output power, Po, by;
Power gain= 10log(small 10) Po/Pi decibles (dB)
a) As part of the assesment of a new system you have been asked to find the power gain when Po=15W and Pi=300mW
B) you also have to find out what the output power will be if input power is 400mW and the power gain is 20dB.


Please may someone explain this to me step by step as it completely mindblows me, thanks to anyone who can help me it will be much appreciated.

Thanks everyone :)

2006-10-11 04:09:07 · 2 answers · asked by louie_ellis 1 in Mathematics