Science & Mathematics - 23 September 2007

When I was a teenager some friends and I found our friends dog dead on the back-porch with a small wound in it's side. Later, my friend came over with a bug in a jar and said that's what had killed his dog. I vaguely remember him saying that it had burrowed into the dog or something?? When telling people this story my friends and I had always referred to the bug as a "cow killer", but after doing some initial research on the Velvet Ant (aka Cow Killer) I see that it is the sting of that insect which is harmful and it doesn't seem to burrow. Does anyone have any idea what this killer bug could have been? Or was my friend pulling my chain...although he did seem pretty serious! I live in SE Texas, if that's any help.

2007-09-23 03:59:36 · 10 answers · asked by Katy J 1 in Zoology

please help me on these give the structural formula and name of the alcohol
ethanoic acid,ch3c02h
propanone-ch3coch3
propanal-ch3ch2cho
hexan-2-one-ch3(ch2)3coch3
cyclohexanone
benzoic acid

2007-09-23 03:58:38 · 2 answers · asked by Anonymous in Chemistry

A 85 kg water skier is being pulled at a constant velocity. The horizontal pulling force is 310 N.

(a) Find the magnitude of the total resistive force exerted on the skier by the water and air.
__________N
(b) Find the magnitude of the upward force exerted on the skier by the water.
__________N

2007-09-23 03:52:57 · 5 answers · asked by Anonymous in Physics

2007-09-23 03:46:24 · 3 answers · asked by behindline 1 in Engineering

i wanna know cause i have this english book and i really wanna know so i will get good grades and sucess in life hoping to write a book that other students will read and become just like me and on and on and on!
tysm for ur help!

2007-09-23 03:41:22 · 8 answers · asked by Ramiboy99 2 in Physics

Hi. My Tech. teacher wants me to find technology articles that explain a new type of technology. Ex: the Iphone or electric cars. can anyone tell me what websites would give this information? Thanks!

2007-09-23 03:37:15 · 1 answers · asked by Valentina 2 in Engineering

2x - 4y + 2z = -8
2x + y - z =10
3x - y + 2z=4

Solve

2007-09-23 03:32:22 · 7 answers · asked by Anonymous in Mathematics

i'm not sure how to do this

2007-09-23 03:31:49 · 4 answers · asked by Anonymous in Mathematics

For example velocity = (change in position)/(change in time)

2007-09-23 03:29:42 · 9 answers · asked by Anonymous in Physics

I was reading a book, that said that the center of a galaxy might be a black hole. But wouldnt that mean that we're movin closer to the core? So when we take measurements of how far away the next galaxy is it would look like its getting farther, when we're just going closer to the center.

Also if the galaxy is spinning, then wouldn't that also contribute to things lookin farther away over time? Because it would look like the other galaxys are movin away when the galaxy turns and our earth moves to the other side of the galaxy.

Or did they take this all into account when they made up the thoery that the universe was expanding?

2007-09-23 03:27:05 · 11 answers · asked by Anonymous in Astronomy & Space

The questions asks "For what launch angle will the height and range of a projectile be equal?" I have spent over 2 hours trying to figure this question out, and the furhest I have been able to get is cos (x) = (-.5)/(v-initial)

2007-09-23 03:25:47 · 3 answers · asked by Jazzy 1 in Physics

is the world round, in the first place..

2007-09-23 03:22:53 · 3 answers · asked by -4th year high school- 1 in Earth Sciences & Geology

the new cilla black advert on tv look at the picture of the moon landing , i hope its not my eye sight but are the two shadows pointing in different directions? could this be possible! or was it part of the so called moon landing conspiricy. have a look and see what you think. TTFN

2007-09-23 03:22:09 · 10 answers · asked by Anonymous in Astronomy & Space

Really, the simplest questions have the most complicated - and vaguest - answers.

2007-09-23 03:21:16 · 2 answers · asked by Anonymous in Chemistry

There's this thing running around my yard that I can't identify. It's gray, is slightly smaller than a squirrel, has a squirrel body and face, but a rabbit tail, and hops like a rabbit. Weirdest thing, I'm tellin ya! Anyone have any ideas what this is? I've scoured the internet for HOURS and can't find any pictures even close to this thing, though I have seen a couple other references to a "half squirrel-half rabbit" spotted in other people's back yards on some forums. Unfortunately, they didn't describe what it looks like. Thanks for the help, all!

2007-09-23 03:20:15 · 22 answers · asked by Tabetha K 1 in Zoology

On the surface of earth ,it is approximately 6,200 miles from the equator to the north or south pole . How many miles is it between two paralles 1 degree apart?

2007-09-23 03:18:22 · 2 answers · asked by Anonymous in Geography

please help... I really don't know the answer..
thank you...

2007-09-23 03:16:20 · 7 answers · asked by jhenleen 1 in Physics

what is the difference between the alkali metals and the alkali eart metals....(column 1 and 2)

2007-09-23 03:15:13 · 4 answers · asked by Komodork 3 in Chemistry

http://img379.imageshack.us/img379/4208/worklv5.jpg
What is the current through the 3.6k resistor? Total resistance in the circuit is 5k, I think total current is 2 mA but I'm having trouble remembering how to calculate current through parts of the circuit and over resistors.

2007-09-23 03:14:53 · 1 answers · asked by Chris 2 in Engineering

what is BAUD RATE? how is it different to bit rate? please explain in layman's term...

2007-09-23 03:14:06 · 3 answers · asked by ioLLo 2 in Engineering

do all cars have water pumps???

2007-09-23 03:12:33 · 2 answers · asked by mark c 1 in Engineering

2007-09-23 03:08:52 · 3 answers · asked by James the Just 3 in Astronomy & Space

i am in college and my friend tried to explain his major in electrical engineering but i am not completely sure what an electrical engineer does.

2007-09-23 03:07:57 · 2 answers · asked by ant t 1 in Engineering

In this equation

-x+y(cubed) = 12

2007-09-23 03:05:55 · 6 answers · asked by Anonymous in Mathematics

how to do air-cond service and what is air-cond is about...plz answer me....

2007-09-23 03:03:36 · 1 answers · asked by Anonymous in Engineering

2007-09-23 03:02:07 · 2 answers · asked by Mandy Y 1 in Mathematics

I am aware that the blades of a wind turbine are capable of 'feathering' or rotating on their own axis so as to adjust the angle of attack from the wind and thereby regulate the rotation of the turbine as a whole. The faster the wind speed the slighter the angle of the blades to the wind and therefore the lower the turning force.

But what is the importance of maintaining a constant rotational speed? Do I understand this correctly? Is the feathering simply to keep the rotational speed of the turbine within broadly acceptable limits or is it very important to maintain a constant rotaional speed with minimal variation?

People have often commented that large wind turbines always seem to be going at the same speed regardless of the wind speed.

2007-09-23 03:01:29 · 8 answers · asked by tuthutop 2 in Engineering

Let the letters x and y represent rectangular coordinates. Write an equation using polar coordinates (r, theta).

HINT IN THE BOOK

Use the following equations accordingly for each question as needed:

x = rcos(theta)

y = rsin(theta)

r^2 = x^2 + y^2

tan(theta) = y/x, where x does not equal zero.

(1) 4x^2(y) = 1

(2) y = - 3

2007-09-23 03:01:18 · 1 answers · asked by journey 1 in Mathematics

2007-09-23 02:56:42 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-23 02:53:59 · 3 answers · asked by angel 2 in Chemistry