Science & Mathematics - 30 January 2007

ive just bought a instant water heater the type you get in pub toilets, any way ive just realised it is the 7kw version that runs of 400 volts, the problem is my power supply is only 230 volts
was wondering if i connected it too my power supply would it run of 230 v or would this cause a overload and be potentially dangerous??????

2007-01-30 03:33:23 · 1 answers · asked by davies_mattie 1 in Engineering

is there a shop or a website

2007-01-30 03:31:08 · 1 answers · asked by Anonymous in Engineering

or construction engineers

2007-01-30 03:29:56 · 3 answers · asked by dia 1 in Engineering

2007-01-30 03:29:05 · 1 answers · asked by emily_hope_92 1 in Astronomy & Space

natural sources of energy like the solar energy, the wind energy, bio gas energy. the question actually means that why we use gas, petrol, coal or electric powers supllied by CESC. why do not we use the natural sources.

2007-01-30 03:28:58 · 3 answers · asked by bilbo r 1 in Earth Sciences & Geology

2007-01-30 03:26:11 · 3 answers · asked by Groovacious 3 in Medicine

2007-01-30 03:24:30 · 1 answers · asked by Anonymous in Earth Sciences & Geology

A truck, part of a rocket test facility, is moving along a straight track at a steady 30 m s-1 when it is subjected to an acceleration that rises linearly from 0 to 100 m s-2 over the next 5 m of its travel. How fast is it going at this point?

2007-01-30 03:23:47 · 1 answers · asked by Z0LA 1 in Mathematics

2007-01-30 03:18:52 · 2 answers · asked by lil_lady 1 in Earth Sciences & Geology

If so can they leave also?

2007-01-30 03:18:48 · 6 answers · asked by M J 3 in Astronomy & Space

2007-01-30 03:18:02 · 7 answers · asked by Anonymous in Physics

By The second law of thermodynamics “Entropy” the universe is breaking down and there is evolution constantly mentioning how the universe is getting bigger
Are these two affecting each others laws in physics?

2007-01-30 03:15:30 · 10 answers · asked by Anonymous in Astronomy & Space

2007-01-30 03:14:39 · 1 answers · asked by US 2 in Zoology

Does that make a difference in space geometry?

2007-01-30 03:13:32 · 1 answers · asked by Anonymous in Astronomy & Space

As Light and other particles get closer to the infinitely small and heavy singularity would they not accelerate to beyond the speed of light? and as they are spinning around would they not collide with slower or bigger particles creating massively huge explosions? (I know we wouldn't be able to see them).and if the are going faster than light quarks and the such, do they not escape?

2007-01-30 03:11:31 · 1 answers · asked by Anonymous in Astronomy & Space

2007-01-30 03:10:13 · 1 answers · asked by laurens_odyssey 1 in Chemistry

2007-01-30 03:09:56 · 1 answers · asked by Anonymous in Biology

How does that affect relative physics?

2007-01-30 03:08:03 · 4 answers · asked by Anonymous in Physics

A.they help us tell which stars are which.
B.Over 6,000 constellations exist since realignment in 1929 by the IAU.
C.They are used to help break up the sky into manageable bits.
D.They have been made up by farmers, poets and astronomers

2007-01-30 02:59:31 · 1 answers · asked by Prince_Krona 2 in Astronomy & Space

You have the numbers 5, 10, 15, 20, 25 and the signs + - / * You can only use a number or sign once and you must use every number and sign. Can you get an answer of 180

2007-01-30 02:58:23 · 7 answers · asked by Anonymous in Mathematics

What is the name of this function? My professor ask us to find out the name and the rangs of the function.

2007-01-30 02:56:10 · 1 answers · asked by Anonymous in Mathematics

What is/are the conditions of the intermediate value theorem, such that a number c exists where f(c)=ysubzero

A. f(x) is continous on the interval [a,b]
B. lim f(x)= ysubzero
x->c
C. ysubzero is a number between f(a) and f(b)
D. A and B

2007-01-30 02:56:04 · 1 answers · asked by Anonymous in Mathematics

A.Southern Cross
B.Orion
C.Ursa Major
D.None of the above

2007-01-30 02:55:01 · 1 answers · asked by Prince_Krona 2 in Astronomy & Space

Crossword puzzle - has 8 letters

2007-01-30 02:53:42 · 1 answers · asked by Anonymous in Biology

In a class , except 18 all are above 50 years. 15 are below 50
years of age. how many people are there

2007-01-30 02:52:32 · 12 answers · asked by Anonymous in Mathematics

2007-01-30 02:51:18 · 1 answers · asked by Emerson 5 in Biology

Find the value of k in the function h(x)=((kx-3)(x-2))/((7x+9)(2x+5)

2007-01-30 02:51:10 · 1 answers · asked by Anonymous in Mathematics

under which of the following does 1/(x^n) approach 0?

A. x approaches 0
B. x approaches positive infinity
C. x approaches negative infinity
D. B and C
E. none of these

2007-01-30 02:49:20 · 3 answers · asked by Anonymous in Mathematics

I am not so sure

2007-01-30 02:47:14 · 1 answers · asked by Anonymous in Chemistry

2007-01-30 02:45:00 · 17 answers · asked by Anonymous in Astronomy & Space