Science & Mathematics - 7 January 2007

i just need to know please its 7:21 here in indiana

2007-01-07 11:21:43 · 8 answers · asked by whitney 2 in Geography

i had a homework packet due over my holiday break and i need some help with a few of the questions. thanks ahead of time

A highway curve that ha a radius of curvature of 100 m is banked at an angle of 15 degrees. (Hint: the car is turning on an inclined plane, make a force diagram of it and work from there!)


a) determine the vehicle speed for which this curve is appropriate if there is no friction between the road and the tires of the vehicle.

On a dry day when friction is present, an automobile successfully negotiates the curve at a speed of 25 m/s.

B) draw and lable all the forces on the automobile.
c) determine the minimum value of the coeficcient of friction necessary to keep this automobile from sliding as it goes around the curve.

2007-01-07 11:21:10 · 4 answers · asked by milk man 1 in Physics

i need help on number 6! no jk! i just don't know! this is NOT a trick question!!!!

ALSO! wats 78+22????

HELP ME!

2007-01-07 11:21:02 · 8 answers · asked by Anonymous in Mathematics

2007-01-07 11:20:44 · 2 answers · asked by Sarah 1 in Physics

2007-01-07 11:20:19 · 4 answers · asked by angleann16 1 in Mathematics

2007-01-07 11:19:14 · 7 answers · asked by Ttyme 1 in Earth Sciences & Geology

WRITE A 2 COLUMN PROOF FOR THE FOLLOWING PROBLEM.

GIVEN: D,O,AND G ARE THE MIDPOINTS IF THE SIDES OF TRIANGLE TCA

PROVE: GOAD IS A PARALLELOGRAM

WHAT THE DAIGRAM LOOKS LIKE- POINT C CONNECTS TO POINT A AND THEIR MIDPOINT IS POINT D. POINT A CONNECTS TO POINT T AND THERE MIDPOINT IS POINT O. POINT T IS CONNECTED TO POINT C AND THERE MIDPOINT IS POINT G. MIDPOINT D IS CONNECTED TO MIDPOINT G BUT NOT TO MIDPOINT O. MIDPOINT G IS CONNECTED TO MIDPOINT D AND MIDPOINT O. MIDPOINT O IS CONNECTED TO MIDPOINT G BUT NOT TO MIDPOINT D.

2007-01-07 11:19:03 · 4 answers · asked by hi 3 in Mathematics

I tryed google images.....any ideas or suggestions?!

2007-01-07 11:16:39 · 3 answers · asked by narcissa 5 in Biology

a line segment is drawn from the center of a regular pentagon to each of the five vertices, forming five congruent isoceles triangles. How many degrees are in each base angle?

2007-01-07 11:16:28 · 9 answers · asked by hoopmaster1 1 in Mathematics

okay the question is

find the surface area to volume ratio for each of the following:


a rectangular prism with the dimensions of n*n*1
(*=multiplied by)
i have the answer but i cant get how it looks worked out, the answer is 2+ 4/n (read as two plus 4 over n)

2007-01-07 11:15:18 · 3 answers · asked by kae s 1 in Mathematics

I injured my shoulder once and the trainer at my school told me not to take advil, tylenol, or moltrein, instead take anti inflammatory such as ibuprofen. But isn't ibuprofen in advil, tylenol, or moltrein? wouldn't that make those anti inflammatory also?

2007-01-07 11:14:01 · 6 answers · asked by CK 5 in Medicine

2007-01-07 11:13:32 · 5 answers · asked by darkorzbc 2 in Chemistry

solve this by method of substitution
3x + y=2
x^3 - 2 + y=0
the anwers are (0,2), {sqrt(3), 2-3 sqrt(3)}, and
{-sqrt(3),2+3sqrt(3)}
Can you please show me how to do this problem, I have the answers but I don't really understand how to them. thanks in advance

2007-01-07 11:13:29 · 5 answers · asked by elizabeth g 2 in Mathematics

2007-01-07 11:13:17 · 3 answers · asked by Allie C 2 in Chemistry

if I am using a ballast system that is suited for a 38v, 7.1A, 270Watt globe. I wish to use the same ballist system on another metal halide globe but the ratings are diffrent. What I need to know is will the globe explode or just just burn out faster, or if I'm lucky be a good match/replacement for the original? the specs for the globe I wish to use are as follows.

9-16v
3.2-20A
35Watts

if it's not going to work what is the easiest way of making the original balist work with the new globe?

2007-01-07 11:13:11 · 2 answers · asked by Navyant 2 in Engineering

Only using each letter of the alphabet once? And it has to make sense.

2007-01-07 11:12:31 · 9 answers · asked by Georami 3 in Biology

2007-01-07 11:12:17 · 6 answers · asked by Ben 1 in Medicine

If you've heard of/seen google earth, you know what i'm talking about. What is the best site that lets you see images of earth: where you can pan and zoom in anywhere, with sharp, clear images?

2007-01-07 11:12:17 · 4 answers · asked by Upon this rock 3 in Astronomy & Space

You can't use a calculator or computer to solve it. D:< If you know how, could you completely explain how you did it? Thanks x 1928320198392081. :)

2007-01-07 11:12:11 · 2 answers · asked by Anonymous in Mathematics

how is the absorption of fat different from that of sugar or amino acids?


thankx

2007-01-07 11:11:27 · 1 answers · asked by nargis 2 in Biology

2007-01-07 11:10:21 · 6 answers · asked by Oscar 2 in Chemistry

Or will your compass still keep leading you east for ever.

2007-01-07 11:09:41 · 9 answers · asked by Hi T 7 in Astronomy & Space

I live in VA and it has been very warm here lately. Yesterday it was near 74 degrees. I love it!

But most of my friends wanna see it snow. I could leave without it!

2007-01-07 11:08:40 · 7 answers · asked by Anonymous in Weather

2007-01-07 11:06:58 · 10 answers · asked by fahed 1 in Physics

I came across this statement on a web page about protein. "If all the essential amino acids are not present it is not complete ( or usable as ) protein."

I did not believe the part specifically about "usable" to be true according to my understanding. I thought different proteins in the body required different amino acids, but this statement suggests they all require at least some amount of all the essential amino acids.

Could somebody clarify what is accurate?

2007-01-07 11:06:54 · 3 answers · asked by tyler z 2 in Biology

Stem moves into the cylinder of a steam engine at a constant pressure of 2 times 10 ^5 Pa. The diameter of the piston is 16 cm. and the piston travels 20 cm. in one stroke. How much work is done during one stroke?

2007-01-07 11:06:21 · 4 answers · asked by Kitana 2 in Physics

here in PA, it's warm and it should be snowing and i guess in washington buds on trees are blooming or something? is this normal? or is it because of the El Nino thing or whatever

2007-01-07 11:05:20 · 9 answers · asked by Kera 1 in Weather

Find the term that should be added to the expression to create a perfect square trinomial

2007-01-07 11:05:17 · 6 answers · asked by alexandra h 1 in Mathematics

I was thinking today about how everything in the universe works according to pressure--from our bodily functions like breathing, to our cars, to outerspace--but I couldn't remember the definition for what pressure is exactly, or what causes it. can pressure exist where nothing is? would that be a vaccum, meaning there is no pressure? so does substance create pressure? why does moving air have less pressure than stagnant air?

2007-01-07 11:04:56 · 1 answers · asked by hobo 6 in Physics

Are you math smart?
ok, I have a problem I have been trying to simplify, I THINK I have the answer, but I am not sure. Could you please simplify this? (and NO this is not my homework, I just want to be able to solve this sort of problem.Thank you
x^-5w^3/w^2z^-2

2007-01-07 11:04:43 · 4 answers · asked by Anonymous in Mathematics