Science & Mathematics - 2 July 2007

I know how the step up or down transformer works or even a voltage divider. Would one us the same kind of transformer to combine a voltage from for example a alternative fuel generator and a wind mill to achieve suitable household voltage. possibly the ability to wire utility company source voltage so that it is the last resort for use when operating several energy generating sources? (note I am not trying this at home!)

2007-07-02 02:32:39 · 4 answers · asked by MisquetoFarmer 2 in Engineering

What percent is $6.50 of $65?
What percent is $20.00 of $65?
What percent is $20.00 of $65?
What percent is $14.00 of $65?
What percent it $4.50 of $65?

I'm trying to create a budget, and I just realized that I get payed a slightly different amount each week. I want to be able to just multiply my pay by the percentage, but I'm so bad with math!

2007-07-02 02:24:58 · 7 answers · asked by ClaireBear 3 in Mathematics

We talk about the 'five senses', though obviously we have many more than the usual sight, hearing, smell, touch, taste - we can sense the passage of time, heat, the position of our limbs, etc.

I read a list of over a dozen in a popular science book (perhaps 'Why Don't Penguins' Feet Freeze', or something like it); but I can't remember what was on the list.

2007-07-02 02:24:22 · 24 answers · asked by EvilEdd 4 in Biology

2007-07-02 02:24:08 · 4 answers · asked by wilie 1 in Geography

2007-07-02 02:23:06 · 9 answers · asked by shoreke 1 in Astronomy & Space

All the scientists die and go to heaven. They decide to play hide-n-seek

Unfortunately Einstein is the one who has the den...........He is supposed to count up to 100...and then start searching.....

Everyone starts hiding except Newton.........

Newton just draws a square of 1 meter and stands in it right in front of Einstein.

Einstein's counting 1,2,3......97,98,99.....100........ He opens his eyes and finds Newton standing in front........

Einstein says " newton's out..newton's out....."

Newton denies and says "I am not out........I am not Newton......"

Who is out and why ?

2007-07-02 02:22:10 · 5 answers · asked by Dilip kumar 2 in Physics

2007-07-02 02:19:12 · 5 answers · asked by Anonymous in Physics

2007-07-02 02:13:29 · 14 answers · asked by Shinra 2 in Astronomy & Space

do these fatty acids can be convert into methyl ester? can the cashew shell oil be use as biodesiel?

2007-07-02 02:03:18 · 1 answers · asked by Anonymous in Chemistry

I was pondering relativity (as you do) and wondered why a particle can't go faster than the speed of light when we could could send a particle at the speed of light in one direction, and another particle in the opposite direction so that relative to each other the first could be considered still and the other is therefore travelling at the speed of light *2. Extrapolating that idea, why not send a particle accellerator at the speed of light in one direction, and then accellerate a particle from it so the particle is going at the speed of light *2, and then from our lab (where we started) do the same thing in the opposite direction, therefore creating particles travelling at 4* the speed of light.

Clearly some pretty major technological issue to overcome :) but surely that sound in theory???

2007-07-02 01:49:28 · 9 answers · asked by Ross A 1 in Physics

2007-07-02 01:48:43 · 19 answers · asked by Anonymous in Astronomy & Space

How long dos it take for lightness to touch the ground?How long dos it take for darkness to touch the ground? Which one is faster? Theres te answer.

2007-07-02 01:48:16 · 10 answers · asked by Alexis-Leigh B 1 in Engineering

2007-07-02 01:45:57 · 1 answers · asked by ronnel_leila 1 in Mathematics

2007-07-02 01:45:30 · 9 answers · asked by addicted to this 4 in Zoology

2007-07-02 01:44:01 · 10 answers · asked by Anonymous in Physics

its only in my head at the moment.....how do I go about getting help and more ideas and how it will be made.... who can I talk to without them taking my idea ???

2007-07-02 01:43:45 · 4 answers · asked by Fbfbfbfb 2 in Engineering

please try solving the problems:

1) n:9=52:63
2) 4:7=6:n

tnx

2007-07-02 01:43:28 · 6 answers · asked by Anonymous in Mathematics

r(x)=(e^41x^2)^3

t(x)=3^7x-3

r(x)=e^6x^2-8x+1/x

2007-07-02 01:43:12 · 2 answers · asked by poncg004 1 in Mathematics

when i added 12 M HCl to a saturated 5.4 M NaCl the solution bubbled and fizzed and a line of separation was formed. The question asked me what the Cl- concentration in the original solution and i think its 5.4 M that it asked after the addition of 12 M HCl and i think it 12+5.4 which is 17.4 M, than it asks me to explain in terms of the relative Cl concentration in the two solutions, and it terms of the equilibrium NaCl>< Na+Cl can someone help me analyze that question?

2007-07-02 01:43:10 · 1 answers · asked by ... 3 in Chemistry

in a diagram.

2007-07-02 01:33:01 · 4 answers · asked by The Way 4 in Astronomy & Space

when elecricity comes into your house and goes round the circuit? -does it go back to the power station or what?
Also why does elecricity have to go in a circuit?

2007-07-02 01:30:42 · 6 answers · asked by Zirkon 3 in Physics

do you know the uses of the following laboratory tools:

triangular file
iron clamp
adapter
reagent bottle
extension clamp

pls. answer...tnx!

2007-07-02 01:30:08 · 1 answers · asked by xtian 2 in Chemistry

Ability to Move.
one of the most easily observed activities of most living things is motion or movement. Pls.give examlpes of organisms that use each type of locomotory organ.

2007-07-02 01:22:50 · 2 answers · asked by inchick 2 in Biology

2007-07-02 01:15:16 · 2 answers · asked by rohini k 1 in Chemistry

In a loadcell there are say, six terminals in a six-terminal hook up system i.e. excitation(2), sense(2), input(2) if the screen terminal is neglected. What role do the sense terminals play?

2007-07-02 01:14:24 · 1 answers · asked by mumuye 1 in Engineering

just wondering because i live there.

2007-07-02 01:12:35 · 10 answers · asked by Anonymous in Geography

2007-07-02 01:06:53 · 5 answers · asked by ahmed kadhem mohammed a 1 in Engineering

s(x)=log_3(x^2+5x)

2007-07-02 01:01:44 · 3 answers · asked by latina_babygirl002 1 in Mathematics

or similar music player which you use via earpiece affects
controlled movement ie. motor control any idea would help thanks

2007-07-02 00:59:06 · 4 answers · asked by hairy armpits 2 in Other - Science

This is my assignment in physics pls help me... thanks!

2007-07-02 00:56:12 · 2 answers · asked by edwingumba 1 in Earth Sciences & Geology