Science & Mathematics - 15 December 2007

Which if either would reduce the ammount of my electricity bill?

2007-12-15 02:43:56 · 2 answers · asked by bereftcat 4 in Engineering

It is related to the spectrum of light.

2007-12-15 02:43:07 · 4 answers · asked by isabella 1 in Physics

2007-12-15 02:42:49 · 4 answers · asked by Anonymous in Other - Science

thanks.

2007-12-15 02:41:56 · 13 answers · asked by cew613 2 in Mathematics

2007-12-15 02:41:34 · 11 answers · asked by Anonymous in Other - Alternative

2007-12-15 02:41:29 · 3 answers · asked by Joshua 2 in Physics

2007-12-15 02:41:23 · 12 answers · asked by Anonymous in Parapsychology

2007-12-15 02:39:26 · 3 answers · asked by Joshua 2 in Physics

Whats the minimum distance from the ATS to the panels its supplying? Don't have NFPA 110

2007-12-15 02:36:24 · 3 answers · asked by WTF 3 in Engineering

2007-12-15 02:32:42 · 7 answers · asked by sebas4241 1 in Earth Sciences & Geology

Seems to have the same smell as the Cosmological Constant.

2007-12-15 02:30:22 · 2 answers · asked by bradxschuman 6 in Physics

I heard it's corn starch or sodium bicarbonate which is it?

2007-12-15 02:29:13 · 6 answers · asked by dyude 2 in Chemistry

2007-12-15 02:26:39 · 1 answers · asked by jmarcus10 1 in Physics

2: Using the parallel postulate, we can deduce that any two lines not intersecting are parallel.

True
False



3: The sum of the exterior angles of a triangle is 180 degrees.

True
False

2007-12-15 02:23:53 · 11 answers · asked by sophiapena11 1 in Mathematics

Find the set of values of k for which the equation 2x^2+kx+2+0 has no real roots ?

Once again i have become stuck on another maths equations.
Please can someone give me some guidence on this question.
Thank you for any help.

2007-12-15 02:22:17 · 8 answers · asked by Anonymous in Mathematics

Using pH = - log[H+] where the H+ represents the Hydrogen ion concentration, show calculations and / or steps for solving the equation, if the H+ of grapes is represented by 0.85
Show all steps taken to find the ph balance of the grapes

2007-12-15 02:20:41 · 2 answers · asked by lilmamahoney 1 in Chemistry

2007-12-15 02:20:18 · 4 answers · asked by Anonymous in Physics

I was looking through my telescope last night and I witnessed what looked like a star but it was flashing green,blue & red.My neighbor said it may have been a comet.

2007-12-15 02:16:00 · 14 answers · asked by Cheryl C 1 in Astronomy & Space

(7 / 3)^(-2) ?
Please help.

Any As revison websites will also be helpfull.

2007-12-15 02:02:23 · 5 answers · asked by Anonymous in Mathematics

2007-12-15 01:59:30 · 3 answers · asked by Anonymous in Other - Science

2007-12-15 01:58:18 · 9 answers · asked by Anonymous in Astronomy & Space

the options are 1.10^15 2. 10^17 3.10^21 4. 10^27 5. 10^33 .also plz explain the answer to me

2007-12-15 01:56:33 · 1 answers · asked by usama s 1 in Physics

To what extent (if any) are seals and dogs related? I realise they are different species, but kinda like a horse and donkey or a sheep and goat, are they at all related?

2007-12-15 01:45:16 · 10 answers · asked by Anonymous in Biology

Make a the subjext of the equation;
2a+5c=af=7c

Im not sure but, when i did it i got a=-2c *over* f


Am i right?


also does any one know of any useful As revision websites?

2007-12-15 01:44:02 · 1 answers · asked by Anonymous in Mathematics

my favourite subject is science but i dont like maths at all wat should i do?

2007-12-15 01:42:07 · 15 answers · asked by Anonymous in Mathematics

I know three of them. Those being food, water, and shelter. I cant remember any more. First one to help wins.

2007-12-15 01:39:44 · 11 answers · asked by Anonymous in Biology

list all isomorphisms from Z-8 toZ-8

2007-12-15 01:37:02 · 1 answers · asked by Anonymous in Mathematics

give a sensible answer.it is very important

2007-12-15 01:33:59 · 3 answers · asked by Anonymous in Agriculture

plz plz solve it it will be really helpful plzzzzzzzzz i ahve a test tmrw......

2007-12-15 01:32:36 · 3 answers · asked by Anonymous in Mathematics

What are they like.

2007-12-15 01:31:32 · 17 answers · asked by cucumis_sativus 5 in Zoology