Science & Mathematics - 26 August 2007

If I am building a +48V power supply for condenser mics, how stable should the output voltage be? What should my range of error be, as in 48.0 +/- X volts, for solid, functional operation?

2007-08-26 05:46:12 · 2 answers · asked by Not Eddie Money 3 in Engineering

2007-08-26 05:45:54 · 4 answers · asked by texan3715 1 in Mathematics

2007-08-26 05:41:47 · 3 answers · asked by coolguy 1 in Mathematics

Homework Help !? I know i'm a totl idiot by not knowing this , i'm like , berely 11 . And they put me in honors at school , I hate them !

2007-08-26 05:40:21 · 13 answers · asked by Starstruck* 2 in Mathematics

2007-08-26 05:38:40 · 4 answers · asked by REX 3 in Astronomy & Space

Could we look up one night and see a big Wal-Mart Happy Face or a Pepsi Logo?

2007-08-26 05:32:28 · 7 answers · asked by REX 3 in Astronomy & Space

I have to finish my summer homework and i am down to the last few and i just don't know how to finish them. And the reason i am doing it last minute is not because i am procrastinating. I have had a 9-6 job, at the Goddard School which is like a daycare/preschool, all summer to help pay for my car.

But the original math question is solve the equation:

ln x = ln (x+1) - 1 and i don't evem know where to start.

2007-08-26 05:31:43 · 11 answers · asked by webshell46 1 in Mathematics

its equation is x2 + (y - 4)2 = 4 so do I assume it is (x-0)^2+(y-4)^2?

center is (0,4) and the R=4?

2007-08-26 05:28:23 · 5 answers · asked by m_carl 1 in Mathematics

Find the greatest common factor of 8, 16, and 20.

I got 4...is this right?

2007-08-26 05:27:18 · 9 answers · asked by Anonymous in Mathematics

find the modulus of 1+i(3pi)/5

2007-08-26 05:26:14 · 3 answers · asked by Pinky 2 in Mathematics

the objectives on a microscope? your hand or is their a knob?

2007-08-26 05:19:17 · 1 answers · asked by Terri L 2 in Physics

2007-08-26 05:11:15 · 15 answers · asked by Anonymous in Zoology

My teacher gave me summer work b/c of its an AP course and I can't remember this one. She gave us the answers but we have to show our work...the answer is √(x - 4) + 1. I need to know how to get this answer. Thanks. =]

2007-08-26 05:10:48 · 7 answers · asked by mcmigs4 1 in Mathematics

I wanted to go watch mr.beans hoilday today but i dun no where the rainbow cinima is closest to me,. My address is 18 grenville st toronto ont. m4y 3b3 can some one plz help me i think there is one in fairview mall and i right and if i am where can i get the full address plz help me

2007-08-26 05:03:46 · 4 answers · asked by Rose 2 in Weather

Is our country still building particularly large and monumental dams?

2007-08-26 04:59:46 · 3 answers · asked by Christine E 1 in Engineering

2007-08-26 04:58:37 · 2 answers · asked by ßußßly™ ツ 4 in Other - Science

2007-08-26 04:55:12 · 5 answers · asked by coolguy 1 in Mathematics

How do i solve the following:

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

2. 4x+9y=2
2x+6y=1

thanks so much for the help

2007-08-26 04:53:51 · 5 answers · asked by hp 1 in Mathematics

fill in the blanks

WAVELENGTH: Light - Color, Sound - ?
AMPLITUDE/INTENSITY: Light - Brightness, Sound - Loudness
FREQUENCY: Light - ?, Sound - Pitch

2007-08-26 04:53:25 · 3 answers · asked by MatT 7 in Physics

Lately, there has been talk of cloning a wooly mammoth. Do you believe extinct animals should be cloned? Please note, this is not a question pro or con general cloning; it refers to extinct animals only.

2007-08-26 04:51:11 · 6 answers · asked by Elaine P...is for Poetry 7 in Biology

My friend saw a spider that looks like a wolfspider only skinnier legs and it was black

2007-08-26 04:50:52 · 1 answers · asked by Anonymous in Zoology

Object A has a charge +2μC and object B has a charge of 6μC. Which statement is true?

I'm not sure about the condition of the 6μC charge, so please indicate the answer (a, b, c or d) in both conditions: (6μC and -6μC). THanks a lot!

A. Fab = - 3 Fba

B. Fab = - Fba

C. 3 Fab = - F ba

D. F ab = 3 F ba

2007-08-26 04:50:49 · 3 answers · asked by MatT 7 in Physics

Seriously.

2007-08-26 04:49:05 · 15 answers · asked by i use Y!A 1 in Astronomy & Space

Can you explain it step by step.

7x+21 over 35x times 5x-15 over x^2 -9

2007-08-26 04:48:27 · 4 answers · asked by Anonymous in Mathematics

2007-08-26 04:44:29 · 1 answers · asked by Alwyn F 1 in Medicine

2007-08-26 04:40:59 · 7 answers · asked by kenya w 1 in Astronomy & Space

they claim they use 3 watts of electricty or 25 watts and so on but is there something hidden ab out the light bulb that doesnt really save electricty compaared to a standard light bulb that would use 60 watts of electricity

2007-08-26 04:40:46 · 6 answers · asked by michaeljustussvcc 1 in Engineering

2007-08-26 04:35:54 · 44 answers · asked by Anonymous in Mathematics

I already recycle, take the bus instead of driving in the car, conserve water by showering instead of having a bath and I turn off the lights, computer and T.V. when they're not needed.

2007-08-26 04:35:49 · 4 answers · asked by Em M 1 in Earth Sciences & Geology

2007-08-26 04:32:56 · 3 answers · asked by Alwyn F 1 in Engineering