Science & Mathematics - 5 November 2007

about physics...

2007-11-05 21:11:11 · 8 answers · asked by Jeber 2 in Physics

I read on this sentence that transmission lines are typically used most heavily during off-peak hours. Is it because the off-peak period longer than the peak load period?

2007-11-05 20:59:02 · 3 answers · asked by Anonymous in Engineering

I know that it is a combination, and can be solved using the formula, but how does a graph or technology tell you that it really is?

2007-11-05 20:49:01 · 1 answers · asked by hypatia27 1 in Mathematics

2007-11-05 20:40:58 · 2 answers · asked by Anonymous in Zoology

FInd The largest share of 450 when distributed in the ratio of 2:5:4.
I just need the solution. Answer is 204.55. Tnx!

2007-11-05 20:40:52 · 3 answers · asked by juli 1 in Mathematics

Ever notice that when it's dark, the air seems to be made of billions of little specks, like tiny pixels?

What are those?

2007-11-05 20:37:39 · 1 answers · asked by Sapphrodite® 5 in Other - Science

How many 3-digit numbers can be formed from the digits 0, 1, 2, 3, 4, 5? How many of them are odd? How many are even?

2007-11-05 20:37:04 · 3 answers · asked by Jinn K 1 in Mathematics

2007-11-05 20:35:53 · 26 answers · asked by Abc D 1 in Geography

For a basic amatuer astrologer what kind of equipment (telescope power) would be good for local viewing?

2007-11-05 20:32:21 · 7 answers · asked by Anonymous in Astronomy & Space

How do you get from ((3^k)-1 + 2*3^k)/2 to ((3*3^k)-1)/2? When i factorise i get ((3^k*3^k)-1)/2 but this is not the correct answer, please explain the steps i need to take in achieving the above mentioned

2007-11-05 20:31:49 · 1 answers · asked by Phizz Whizz 1 in Mathematics

1. Cat
2. Parrot
3. Frog
4. Butterfly
5. Rose
6. Cockroach
7. Mango
8. Milkfish
9. Monkey
10. Earthworm

2007-11-05 20:29:45 · 2 answers · asked by Writers Instincts 2 in Zoology

seriously.

2007-11-05 20:21:21 · 4 answers · asked by Anonymous in Mathematics

Is there an organ called bladder. Is skin the largest organ. What is the smallest organ

2007-11-05 20:15:11 · 10 answers · asked by Anonymous in Biology

Note: the Earth would slow down spinning very slowly, that is as 'safely' as possible so that things and people wouldn't get thrown off because of the slowing rotation.

2007-11-05 20:11:18 · 7 answers · asked by Doctor A 2 in Physics

What do you exactly?

2007-11-05 20:04:06 · 1 answers · asked by Anonymous in Engineering

it is known that the first person on earth was Adam and he was a human this means that darwins theory is fake otherwise why dont poeople change nowadays. atleast for the last 3000 years their have been no change. i have never seen a person with a 15 feet neck or with 20feet arms and legs

2007-11-05 20:03:29 · 13 answers · asked by Anonymous in Biology

$232,482

Notes:
All $ amounts are completed transactions in millions.
------

I need to say what that figure is, but I'm not sure.... I don't want to get my billions and, maybe, trillions, mixed up.

Thanks.

2007-11-05 19:56:32 · 12 answers · asked by Narky 5 in Mathematics

We have come to learn that through evolutionary theory, a stimulus is introduced to our enviroment and we develope an advantage. Somehow the human body developed pigmentation az a means of defense so anyone south of the equator had alot of pigmantation while northern animals had less? agree or disagree and why?

2007-11-05 19:51:48 · 4 answers · asked by Curiosity Rules! 2 in Biology

I hope Anyone who has sound knowledge in Electrical engg. Can only make a suggestion for the following question! I also need simple illustration. I must generate 200 watts of Electricity. But i have only these details.
1. Crank shaft pulley dia 8 cm.
2. Crank shaft speed 700 rpm.
3. 2 kg of force acting on the crank shaft.
4. Crank shaft length - 15 cm.
If I connect the crank shaft to an ordinary car alternator, will it be able to produce 200 watts?
I know nothing about Elec. Engg. So please make a good suggestion how to produce 200 watts.

2007-11-05 19:51:18 · 2 answers · asked by Mani 1 in Engineering

if the capacitance of a capacitor is x farad, then how do i count the total current release if the capacitor fully discharge in an instant? Can someone tell me the formula or any method on how to count it?

2007-11-05 19:46:40 · 4 answers · asked by John Terry 2 in Engineering

a clock has a 20cm long hour arm .wat is the linear speed of its tip?


if y = 1+ 4x + 6*square of x + 4*cube of x + x raised to 4. then the dimensions of y are.

2007-11-05 19:38:59 · 6 answers · asked by vidhi j 2 in Mathematics

Thanks! =D

2007-11-05 19:35:41 · 7 answers · asked by thirdigras 2 in Chemistry

a number when divided by 7 the reminder is 6
when divided by 6the reminder is 5
when divided by 5 the reminder is 4
when divided by 4 the reminder is 3


what is the number please

2007-11-05 19:32:06 · 6 answers · asked by bani n 1 in Mathematics

I think i got this one but I need to be sure. I have a chemlab tomorrow morning and im so lost...

2007-11-05 19:30:07 · 1 answers · asked by robbyack2000 2 in Chemistry

2007-11-05 19:21:24 · 3 answers · asked by snow 1 in Engineering

i know that diverges means that it is inf, goes on 4evr....
but if we find that a sequence converges, how do we calculate the sequence..for ex:
a(n)= { n^2 e^-6n}

2007-11-05 19:13:04 · 1 answers · asked by tc 1 in Mathematics

f(x) = x^3 + x + 4/x

2007-11-05 19:12:45 · 2 answers · asked by Anonymous in Mathematics

The measurement of the edge of a cube is found to be 14 inches, with a possible error of 0.04 inch. Use differentials to approximate the maximum possible propagated error in computing the volume of the cube and its surface area?

Estimate the maximum allowable percent error in measuring the side if the error in computing the volume cannot exceed 2%. ds/s% = ?

2007-11-05 18:57:41 · 3 answers · asked by Daniel B 1 in Mathematics

Find the derivative of

f (x) = sin 3x^2 / (3x+1)^2


thanks in advance for ur help

2007-11-05 18:46:30 · 2 answers · asked by Dr Virus 3 in Mathematics

I am pretty good at moving objects with my mind, but i'm still an amateur. For example, i can rotate a toothpick and jiggle a paperclip. But i want my ability to grow, and for that i would need a teacher. Does anyone out there have experience or know of someone who is a telekinetic master? a friend or neighbor perhaps? If you do, please let me know and ask the teacher to contact me trough a mind portal.

2007-11-05 18:46:15 · 7 answers · asked by Samantha 3 in Parapsychology