Science & Mathematics - 28 October 2007

Why is the starfish in the animal kingdom? why.

2007-10-28 12:59:36 · 6 answers · asked by Anonymous in Zoology

Hello -

I'm trying to figure out the bounds for the following integral.

Triple Integral xy dV, where E is the solid tetrahedron with vertices (0,0,0), (1,0,0), (0,2,0), (0,0,3).

Please help. Thank you.

2007-10-28 12:59:36 · 2 answers · asked by Anonymous in Mathematics

Since we've been in such a drought this summer and fall, do you think that the rain is going to come in the winter and cause ice storms? Do you think it is going to be really cold this winter?

2007-10-28 12:58:04 · 1 answers · asked by sugar 4 in Weather

Can anyone show me how to do this?

2007-10-28 12:55:27 · 5 answers · asked by Anonymous in Chemistry

My teacher assigned us to come up wih a procedure for decomposing baking soda. The problem is I dont know when to tell that all of the gaseous substance has been left and baking soda is left in its purest form. Does anyone have any suggestions?

2007-10-28 12:54:26 · 4 answers · asked by Anonymous in Chemistry

(Time and Space) paradox question?
Question Details: if a person was traveling to Earth from a distant point 500 light-years away and they were traveling at the speed of light, to the person on Earth would it seem to take the traveler 500 years to reach here? and to the traveler would it still seem and appear to him to take 500 years to reach Earth, even though to a person on Earth the traveler wouldn't have seemed to "age"? understand the question? by the person on Earth's time standards, to and from back to Earth at the speed of light, would appear not to age the traveler 500 years, so does the traveler experience the 500 year time spance traveling at the speed of light?

2007-10-28 12:53:33 · 3 answers · asked by Courageous Capt. Cat 3 in Physics

if a person was traveling to Earth from a distant point 500 light-years away and they were traveling at the speed of light, to the person on Earth would it seem to take the traveler 500 years to reach here? and to the traveler would it still seem and appear to him to take 500 years to reach Earth, even though to a person on Earth the traveler wouldn't have seemed to "age"? understand the question? by the person on Earth's time standards, to and from back to Earth at the speed of light, would appear not to age the traveler 500 years, so does the traveler experience the 500 year time spance traveling at the speed of light?

2007-10-28 12:52:49 · 3 answers · asked by Courageous Capt. Cat 3 in Astronomy & Space

my teacher says its possible but i have no clue how
help is needed
best answer guaranteed

2007-10-28 12:52:34 · 3 answers · asked by T O 3 in Mathematics

Consider two ways that light might hypothetically get from its starting point S to its final point F by way of a mirror: by reflecting from point A or by reflecting from point B. (L = 24 cm) Since light travels at a fixed speed in air, the path of least time will also be the path of least distance. Show by calculation that the path SBF is shorter than the path SAF.
_____cm (path SBF)
_____cm (path SAF)

2007-10-28 12:51:35 · 1 answers · asked by w_rayas07 1 in Physics

Which scientists would have the LEAST use for a standard thermometer in their research?

a) astronomers
b) meteorologists
c) geologists
d) oceanographers

2007-10-28 12:51:07 · 5 answers · asked by Anonymous in Earth Sciences & Geology

Why cant contour lines cross?!?

2007-10-28 12:50:40 · 3 answers · asked by @nim@l Lover 4 in Earth Sciences & Geology

If a store's sales are $55,000 a month and it had a constant increase of 2% in sales each month, how long... would it take for the monthly sales to increase to $85,000? If you can please provide the formula to this question with simple steps that is easily understandable, it would be appreciated.

2007-10-28 12:50:37 · 4 answers · asked by pizzandgrill 2 in Mathematics

2007-10-28 12:49:39 · 27 answers · asked by Anonymous in Astronomy & Space

2007-10-28 12:48:45 · 7 answers · asked by Heather 1 in Earth Sciences & Geology

1. what is a small striped Australian mammal?
2. When a plant begins to shoot (What is this part of the process called?)
3. What insect is similar to a cricket or cicada?

2007-10-28 12:48:43 · 1 answers · asked by a 2 in Botany

2007-10-28 12:47:45 · 2 answers · asked by Heather 1 in Earth Sciences & Geology

Please help.... I think I am looking into to much and cant figure out the answer....

2007-10-28 12:44:26 · 4 answers · asked by Anonymous in Mathematics

Please, don't give me a link to a website or anything, I've gotten plenty of those. I just want a quick summary of the environmental changes over time and a quick summary of the changes in the horse ancestors.

2007-10-28 12:44:05 · 10 answers · asked by ♪audrey♪ 4 in Biology

FIND THE LENGTH OF THE RADIUS

a. 40in
b. 41in
c. 44 in
d. 58in

2007-10-28 12:43:32 · 2 answers · asked by Yomi T 1 in Mathematics

what are some benefits and gains for using coal

2007-10-28 12:43:28 · 2 answers · asked by !cool_chick! 1 in Earth Sciences & Geology

Solve. –3(10x – 3) + 10(3x – 3) = x – 7

2007-10-28 12:42:39 · 1 answers · asked by Anonymous in Mathematics

3f(x) + f(2-x) = x^2

What is f(x)?

2007-10-28 12:42:19 · 2 answers · asked by Anonymous in Mathematics

At what point does the point lose contact with the dome? Thorough explaination please. I remember doing this back in classical mechanics and saw it in a trade magazine about a year ago. Its been driving me nuts ever since.

2007-10-28 12:41:01 · 1 answers · asked by rocketscientistnate 1 in Physics

2007-10-28 12:39:39 · 4 answers · asked by Matrix 1 in Earth Sciences & Geology

A circle of radius is dropped into the parabola . If too large, the circle will not fall all the way to the bottom, if is sufficiently small, the circle will touch the parabola at its vertex. Find the largest value of r so that the circle will touch the vertex of the parabola

2007-10-28 12:38:15 · 2 answers · asked by edima 1 in Mathematics

2007-10-28 12:36:58 · 3 answers · asked by Anonymous in Earth Sciences & Geology

yeah im builing a loft for my dorm. everyoe else just has a big beefy steel beam that goes cross the whole room that the loft floor sits on. but i want something that would look cool any ideas? i was thinking something like a suspension bridge minght be cool, but a cool truss would be awesome too.

2007-10-28 12:33:08 · 2 answers · asked by Daniel 3 in Engineering

lim sec pie x/6 = sec 7pie/6 i dont have a calculator with
x---►7 me so im stuck

2007-10-28 12:32:35 · 1 answers · asked by ♥yessy♥ 2 in Mathematics

please

2007-10-28 12:32:20 · 2 answers · asked by Anonymous in Mathematics

2007-10-28 12:31:57 · 13 answers · asked by Anonymous in Geography