Science & Mathematics - 27 November 2007

2x² + 24x + 40

i need the steps on how to do it

2007-11-27 13:11:42 · 4 answers · asked by Lynn 2 in Mathematics

This question is for a "rocket scientist". I've seen drawings of the asteroid belt that look like a dense ring around the solar system, but I suspect those are exaggerations. Are there any real photos of the asteroid belt? There should be since the Voyagers and other craft have passed throgh them.

2007-11-27 13:08:54 · 8 answers · asked by blue_prince_of_dallas 2 in Astronomy & Space

how would i use integration by parts for this?

2007-11-27 13:08:13 · 2 answers · asked by avidcuriosity 2 in Mathematics

2007-11-27 13:08:04 · 1 answers · asked by Keko Chambers 2 in Botany

does that mean if you injest large quantities of estrogen, your baby has a higher chance of staying female? And if you injest large amounts of testosterone will the baby be male?

2007-11-27 13:07:42 · 7 answers · asked by Chelz 2 in Biology

2007-11-27 13:05:01 · 2 answers · asked by Anonymous in Earth Sciences & Geology

How do I calculate the volume of a solid based on vectors in R3?
Given the vectors [1,1,3] [1,2,-1] and [1,4,1] , what is the volume of the polyhedron?

2007-11-27 13:03:15 · 3 answers · asked by Trailcook 4 in Mathematics

2007-11-27 13:03:07 · 2 answers · asked by Vivi 1 in Geography

For example, I need to purchase aluminum fencing for a total of 158 sq feet. Therefore, I am trying to figure out how many feet are in a lineal foot?

2007-11-27 13:01:35 · 12 answers · asked by missmiami 2 in Mathematics

i need this specified in earth time.

2007-11-27 12:58:36 · 3 answers · asked by Ghost_of_a_good_thing 2 in Astronomy & Space

... thanks..

2007-11-27 12:56:46 · 1 answers · asked by iquechx_hize09 1 in Earth Sciences & Geology

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2007-11-27 12:55:58 · 1 answers · asked by Anonymous in Mathematics

2007-11-27 12:55:52 · 3 answers · asked by pasoquennie 1 in Geography

i have no science capabilities whatsoever!
here are the questions:

1-how does the strong nuclear force affect an atoms electrons?
2-why do fission chain reactions of uranium-235 not occur in underground uranium deposits?
3-does fermium-257 undergo nuclear decay?

thanks alot!

2007-11-27 12:55:40 · 5 answers · asked by hannamoor 2 in Physics

A 24 kg crate initially at rest on a horizontal floor requires a 75 Newtons horizontal force to set it in motion. The coefficient of static friction between the crate and the floor is 0.32.
Once the crate is in motion, a horizontal force of 53 Newtons keeps the crate moving with a constant velocity. What is the coefficient of kinetic friction between the crate and floor??

PLEASE HELP ME!!!! THANKS IN ADVANCE!!!!

2007-11-27 12:55:39 · 1 answers · asked by Anonymous in Physics

Question: Find The Least Common Multiple of the following numbers 3,4,5,6,10 and 15, i know you supposed to find the multiple and the all that stuff but i'm not sure if i'm doing it right....

2007-11-27 12:54:15 · 11 answers · asked by Anonymous in Mathematics

On earth, the tides are in part determined by the Moon. So what happens when a body full of water attempts to walk on the moon?

2007-11-27 12:52:16 · 2 answers · asked by Roy Nicolas 5 in Physics

2007-11-27 12:51:04 · 2 answers · asked by gregory h 1 in Earth Sciences & Geology

Thanks!

2007-11-27 12:50:56 · 22 answers · asked by americasnextopfashiondesigner 2 in Mathematics

2007-11-27 12:49:42 · 2 answers · asked by Vivi 1 in Geography

Mrs Chin, on reaching age 65, invested $18,000 of her insurance policy in AA bonds paying 8 1/2% and a common stock paying 7 1/2%. If her yearly income from these 2 investments is $1,470.00, how much did she invest in the bond and how much in the stock?

Anwrs: $12,000 , $6,000

Can some1 plz help me step by step solve this so i can understand


BIG THX!!

2007-11-27 12:47:36 · 1 answers · asked by KoF 2 in Mathematics

ok here goes i want to buy magnets that has enough power to go through like 1 tick centimeters of plastic, i mean those plastic they use the bulletproof glass out of...any help i Google (ed) it i went to ebay read the types of magnets on wikipedia and i cant find it buy any whwhere and please something small don't wants the neighbors to be suspicious i an indian living in NY they already suspect me lol thanks lots

2007-11-27 12:47:20 · 7 answers · asked by free g 1 in Engineering

2007-11-27 12:45:59 · 1 answers · asked by Roy Nicolas 5 in Astronomy & Space

Why does the pure solvent shows a horizontal curve when solidfication occurs, but the curves for the solution slopes downward slightly?

2007-11-27 12:45:29 · 3 answers · asked by Rushi P 1 in Chemistry

I understand to set it to logarithmic form, which would then lead it to be ln5 (15) = 2x+7 (I think), but not sure what to do next.

2007-11-27 12:44:44 · 4 answers · asked by Anonymous in Mathematics

2007-11-27 12:43:53 · 1 answers · asked by mae 1 in Physics

please help me in giving a proposal in line with a color recognizing robot. the robot can recognize up to two colors only. any idea what to propose? the theme is "robotics with color recognition."

2007-11-27 12:43:25 · 4 answers · asked by leachim 3 in Engineering

my project is to be able to build an organic prototype that will be able to travel a 7 degrees elevated surface and be able to go through an incline plane with heights of 6, 9 and 12 inches. The objective of this is to have the protoype make a projectile flight that will land on our cylindrical shaped target. There is no inorganic force that can affect my prototype. I was thinking of having the car wind up while its moving so that it will build up momentum to make the jump however I am lacking in knowledge in how to do this. Is there actually a way for me to increase the kinetic energy of my prototype while its moving, if so how....if i am doing the winding of the wheels how am i to do so with only organic materials? please help thank you.....

2007-11-27 12:41:29 · 1 answers · asked by maryll d 1 in Engineering

2007-11-27 12:40:23 · 1 answers · asked by Father Ted 5 in Other - Science

1)Evaluate the expression i^112 and write the result in the a+bi form .

The real number a equals_____

The real number b equals _____


2)If the Polar Form expression for a complex number is

9[cos(6pi/21)+ (i)sin(6pi/21)] then the rectangular form is a+bi, where a is _________ and b is ___________

2007-11-27 12:39:36 · 2 answers · asked by mhicks04 1 in Mathematics