Science & Mathematics - 20 October 2006

HELP

2006-10-20 12:38:09 · 6 answers · asked by Anonymous in Mathematics

2006-10-20 12:37:10 · 10 answers · asked by Anonymous in Medicine

2006-10-20 12:31:50 · 5 answers · asked by dan 2 in Other - Science

just wanna know....

2006-10-20 12:29:29 · 2 answers · asked by Anonymous in Astronomy & Space

The volume of the box is represented by (x^2 + 5x + 6)(x + 5). Find
the polynomial that represents the area of the bottom of the box.

2006-10-20 12:26:25 · 5 answers · asked by klickie 2 in Mathematics

y-1 / x +3 = - 3 / 4

2006-10-20 12:23:14 · 8 answers · asked by Anonymous in Mathematics

Assume that her total winnings are $ 400000, that the utility bonds will pay 4 percent per year, and that the savings account will pay 1 percent per year.

How much should she allocate to each investment in order for the yearly incomes from them to be the same?

Utility Bonds: $
Savings Account: $

What will be her total yearly income from these investments? $

2006-10-20 12:19:23 · 4 answers · asked by Diggler AKA The Cab Driver 1 in Mathematics

1/3 + 1/y
-------------- (a fraction)
y/3 – 3/y

2006-10-20 12:18:50 · 9 answers · asked by SCHNITZEL 1 in Mathematics

2006-10-20 12:17:20 · 3 answers · asked by jerse15 3 in Astronomy & Space

A paraglider is flying horizontally at a constant speed. Assume that only two forces act on it in the vertical direction, its weight and a vertical lift force exerted on its wings by the air. The lift force has a magnitude of 1900 N. For both questions, take the upward direction to be the +y direction.
(a) What is the magnitude and direction of the force that the paraglider exerts on the earth?


(b) If the lift force should suddenly decrease to 1000 N, what would be the vertical acceleration of the glider?

2)
A train consists of 50 cars, each of which has a mass of 6.5 103 kg. The train has an acceleration of 5.0 10-2 m/s2. Ignore friction and determine the tension in the coupling at the following places.
(a) between the 30th and 31st cars
N

(b) between the 49th and 50th cars





I appreciate the help, everyone. I basically need an online tutor haha.

2006-10-20 12:17:12 · 2 answers · asked by Chris N 1 in Physics

-2a^2/3a^2 * 20a/15a^3

2006-10-20 12:17:02 · 3 answers · asked by SCHNITZEL 1 in Mathematics

2006-10-20 12:16:00 · 5 answers · asked by bluedragon9081 1 in Mathematics

Should Yahoo provide special keyboard codes to generate special mathematical symbols such as Sqrt and integral signs , exponents etc.A lot of questions look untidy or ambiguous otherwise.

2006-10-20 12:05:35 · 5 answers · asked by sydney m 2 in Mathematics

The number of washers 3/32 inch thick that can be cut from a piece of stock 25.5 inches long, allowing 1/16 inch for waste for each cut is...

A) 160
B) 163
C) 260
D) 272
E) 408

Please also tell me how u find the answer. THANK U!!!

2006-10-20 12:03:10 · 3 answers · asked by Anonymous in Mathematics

I am doing a science project on the effects of artificail increased gravity on plants. I need a device that will spin the plant at a reasonable speed. Any ideas?

2006-10-20 11:58:26 · 5 answers · asked by CanBo 1 in Physics

2006-10-20 11:57:35 · 11 answers · asked by Ray 1 in Earth Sciences & Geology

2006-10-20 11:52:30 · 9 answers · asked by paulbucht 1 in Astronomy & Space

Sometimes when I am driving around at night the moon looks huge like when it is framed by trees or a mountain but at other times looks tiny. Same moon, same night, approximate location but maybe it has something to do with the background.

2006-10-20 11:51:13 · 9 answers · asked by Gib P 1 in Astronomy & Space

Preferably on that itsn't TOO messy and doesn't tak too long. For ages 10-15

2006-10-20 11:43:49 · 12 answers · asked by hurley Reys 2 in Chemistry

what are the propertys of this substance

2006-10-20 11:39:32 · 11 answers · asked by brianisrade 1 in Botany

Mona Yahuso earns three times as much as an actuary as she does as a writer. Her total income is $40,000 more than that of her brother. He earns half as much as Mona does as an actuary. What is Mona's salary as an actuary?

A.
$42,000

B.
$44,000

C.
$48,000

D.
$52,000

2006-10-20 11:38:09 · 14 answers · asked by Anonymous in Mathematics

2006-10-20 11:37:07 · 18 answers · asked by Somebody 2 in Mathematics

I am desperate to do an online/virtual surgery! Does anyone know of one that I can do? Also does anyone know of good research websites for either physics or medical info?

2006-10-20 11:35:08 · 1 answers · asked by musicalpoet94 1 in Medicine

There has been some debate as to whether a scorpion is an insect or an animal...it relates to animal abuse.

2006-10-20 11:34:31 · 16 answers · asked by brimaf 2 in Zoology

...and on to modern humans?

Did any of the early hominids have feet that shopwed ape-like characteristics, like an opposable big toe? Or something along that line? I already know about the pelvic, spinal, skull, and patelar differences. I just want some specifics about feet.

Please provide references.

Creationists, please don't bother to respond to this. I've already heard your arguments.

2006-10-20 11:31:49 · 3 answers · asked by elchistoso69 5 in Biology

also with planes flying around in fog why don't they(brids) fly into one another

2006-10-20 11:28:49 · 10 answers · asked by Anonymous in Zoology

2006-10-20 11:27:47 · 15 answers · asked by ixat02 2 in Mathematics

2006-10-20 11:23:05 · 6 answers · asked by tinonguyen18 1 in Chemistry

Platinum hexafluoride (PtF6)
xenon hexafluoroplatinate: Xe+[PtF6]-
xenon difluoride (XeF2)
xenon tetrafluoride (XeF4)
xenon hexafluoride (XeF6)
oxyfluorides(XeOF2, XeOF4, XeO2F2, XeO3F2, XeO2F4)
xenon trioxide (XeO3)
xenon tetroxide (XeO4)
radon fluoride (RnF2),
krypton fluoride (KrF)
xenon chloride (XeCl2)
argon fluoride (ArF2)
perxenic acid, H4XeO6
Tetra Xenono Gold(II) (AuXe42+
Xenic acid (H2XeO4)
If there are any more, it would really help

2006-10-20 11:18:38 · 4 answers · asked by silentcargo 3 in Chemistry

A.Holly 8, Maria 24

B.
Holly 9, Maria 27

C.
Holly 10, Maria 30

D.
none of these

2006-10-20 11:15:32 · 3 answers · asked by Anonymous in Mathematics