Science & Mathematics - 3 July 2007

2007-07-03 21:25:18 · 2 answers · asked by J 1 in Astronomy & Space

A piece of carpet is 68.58cm wide. How many stripes of such carpet will it take to cover the width of the room that is 5.5m wide.

2007-07-03 21:21:24 · 6 answers · asked by Laurize 1 in Mathematics

2007-07-03 21:13:11 · 3 answers · asked by Nathan S 1 in Weather

I'm ginger and my parents aren't people are always telling me that it is a recessive gene....
but i dont know what that means...
help?
xx

2007-07-03 21:05:11 · 16 answers · asked by blondefootballer 2 in Biology

2007-07-03 20:59:45 · 6 answers · asked by Anonymous in Biology

Everyday guys with hairy bellybuttons get fluff caught in their bellybutton...regardless of the fabric u wear you always have some there at the end of each day! This i can kinda understand due to friction....but why the heck is it always the same colour!???? Regardless of what colour clothing you have been wearing...red,blue,black,grey,... etc,etc the fluff is always the same colour...in my case dark blue...why is this!??? Its one of mans great unsolved mysteries! Can someone please help me??

2007-07-03 20:53:08 · 5 answers · asked by Brett L 2 in Other - Science

I weigh 155 pounds, give or take, with very little fat on me. Any information would be useful, I recently broke my nose, and I am in a lot of pain.

2007-07-03 20:50:51 · 7 answers · asked by John L 1 in Medicine

turn yoru hose on and it has water come out, but you put your thumb on it and it makes more preasure. Could you, or has it already happend, apply that to electricity?

Say put "your thumb" over a wire and make a higher amount of Current? This has probably already been thought of and made but if you could answer i would appriciate it.

2007-07-03 20:47:29 · 2 answers · asked by Anonymous in Engineering

Help... I can't find my vein in my arms near the elbow... I can't extract blood... What are the characteristics of a vein when you palpate them? I can't extract blood if i don't know the vein!!! Arghhh !!!

2007-07-03 20:41:17 · 9 answers · asked by Samlovesjesea 1 in Medicine

I'm trying to integrate the expression:

∫ -sin ²(t) / cos(t) dt

However, no matter how hard I bang my head against this problem, I just can't seem to solve it. I know the answer, which is -sec(t) + cos(t) (in this case, forget the C term), but I haven't a clue how to get there.

2007-07-03 20:41:06 · 5 answers · asked by Changra 2 in Mathematics

Is it really possible to build a building with a panic button, push it the building sends out a count down for evac. until the timer runs out the building blows up?

So you don't want anyone to capture the important info. or the building itself

2007-07-03 20:15:03 · 5 answers · asked by Anonymous in Other - Science

I need to extract an expression for one of the constants 'k' or 'c' in terms of 'X1', 'Y1', 'X2', and 'Y2', then the other constant should follow easily.

Equations are:

Y1 = k * ln(X1 + c) and Y2 = k * ln (X2 + c)

I got as far as this then got stuck:

e^(Y1/k) - e^(Y2/k) = X1 - X2

Can anyone help......please.

2007-07-03 20:13:39 · 2 answers · asked by Anonymous in Mathematics

2007-07-03 20:13:05 · 7 answers · asked by da S 1 in Mathematics

Can you really build a secret military base under an inactive* valcano and use the dome of valcano as a landing for a helicopter or used as for launching a rocket with a contracting roof for camoflage?

Like Mt. Fuji

2007-07-03 20:10:41 · 2 answers · asked by Anonymous in Other - Science

Factor completely: 2x2 - 2x - 12.

2007-07-03 20:10:35 · 5 answers · asked by Anonymous in Mathematics

let * be defined on the set of complex numbers by a*b = labl. determine whether the binary operation * gives a group structure on the given set.

2007-07-03 20:09:52 · 5 answers · asked by la 1 in Mathematics

It's hot and muggy in here and I hate opening windows at night. Would you turn the AC on in 50 something degree weather?

2007-07-03 20:03:29 · 5 answers · asked by Anonymous in Weather

2007-07-03 20:02:07 · 6 answers · asked by kristina n 2 in Zoology

We are trying to purify BaSO4 by dissolving it in an Na5DTPA solution and then re-precipitating it out, but we can't seem to get past the first step of dissolving the BaSO4! We are using a 0.05M DTPA solution made up with 1M NaOH which we got from a journal article. We've tried grounding the BaSO4 into fine powder, heating, ultrasonicating but nothing works. Any ideas?

2007-07-03 19:58:02 · 3 answers · asked by carlaeh 1 in Chemistry

2007-07-03 19:55:17 · 1 answers · asked by naitsyrc 1 in Medicine

The secretary spent her 35 hour work week in this manner: 1/5 of her time sorting mail, 1/7 of her time filing letters, and ½ of her time typing. The rest of her time she acted as a receptionist. The percentage of her time spent as a receptionist during the week was most nearly

2007-07-03 19:45:51 · 5 answers · asked by Anonymous in Mathematics

I need to find a map with just the outline of landmass. No boundaries, no names. It has to be rectangular so that America and Australia doesn't look like it's curved. It has to fit on an 8 x 11 piece of paper. No lines of the Equator or Prime Meridian on it either or those latitude or longitude lines too.

2007-07-03 19:42:36 · 6 answers · asked by Sei 2 in Geography

is such a patent possible in which only i have the right to create a perpetual motion machine which works on principles of magnetic attraction/repletion...i mean the design dosent matter...the fact is no one else can make a perpectual motion machine based on magnetism and use it.
...its just an example

Now if someone else make another design for this machine which does the same thing and works on principles of magnetism...but the design is different over all than mine...he will not allowed the patent, or any one will not be allowed to use this design he has made cause I have a patent filed.
Is this sorta situation possible?...or is there such sora patent?


tell my if u dont understand

2007-07-03 19:40:42 · 6 answers · asked by Anonymous in Physics

Can anyone show or derive an equation so that i can compute for the acceleration due to gravity when a person is inside the earth (or when R is less than Rearth).

2007-07-03 19:32:20 · 4 answers · asked by Anonymous in Physics

I had an organic chem test today and here is one of the questions a few of us struggled with.... "Draw the conjugate acid of propanol." Hoping someone can help me even though I know we cannot draw figures on this site!!!

2007-07-03 19:31:41 · 6 answers · asked by S7L7S7 1 in Chemistry

I have tried soap solution followed an hour later by water. Incomplete results, cumbersome. Any other suestions?

2007-07-03 19:30:08 · 3 answers · asked by syrious 5 in Agriculture

I agree with the theory of the "Bang" (but it's not proven) If the galaxies are moving away from us at tremendous speeds, are we also moving away from those galaxies, or are we in the "exact" center of where the Big Bang would have happened?

2007-07-03 19:14:40 · 10 answers · asked by Anonymous in Astronomy & Space

2007-07-03 19:13:07 · 26 answers · asked by Doctor Biobrain 3 in Zoology

I am just curios to hear any opinions out there...or whatever...

2007-07-03 19:05:52 · 10 answers · asked by Luis R 2 in Astronomy & Space

2007-07-03 19:01:41 · 6 answers · asked by toasty86 3 in Weather