Science & Mathematics - 11 November 2007

I know this is extremely stupid but picture this: A guy is fighting a "rust monster" that could turn his metal weapon into rust. Thing is, he doesn't want that to happen, so what metals don't rust that could be used to make a sword?(Not gold obviously)

2007-11-11 12:14:14 · 15 answers · asked by Anonymous in Chemistry

Part A: Consider the function f(x)= 8sqrt[x] +4 on the interval. [1,7] Find the average slope of the function on this interval.

Part B: By the Mean Value Theorem, we know there exists a in the open interval (1,7) such that f'(c) is equal to this average slope. For this problem, there is only one that works. Find it.

2007-11-11 12:11:09 · 2 answers · asked by Anonymous in Mathematics

2007-11-11 12:09:24 · 1 answers · asked by Anonymous in Botany

2007-11-11 12:06:48 · 3 answers · asked by Matthhh 1 in Engineering

2007-11-11 12:06:15 · 4 answers · asked by nocevski300 2 in Astronomy & Space

2007-11-11 12:05:31 · 2 answers · asked by Jenny D 1 in Mathematics

Well done if you get this one it's hard
I think you have to start by 'pretending' that sin^4x + cos^4x is sin^2x + cos^2x and use sin^2x + cos^2x = 1
Then you have to do something with double angle formulae maybe... I don't know!!!

2007-11-11 12:05:09 · 2 answers · asked by Me 1 in Mathematics

2007-11-11 12:04:44 · 11 answers · asked by gh 1 in Biology

a. separation of sister chromatids

b. riggering the compaction and condensation of chromosomes

c.disassembly of the nucleolus

d.splitting of centrosomes in anaphase

2007-11-11 12:02:21 · 1 answers · asked by bumblebee 4 in Botany

Can you help me with simplifying these radical expressions? Thank you.

1. 5√24 * 3√10

2. √192

3. √150

Have a great day! =)

2007-11-11 11:57:01 · 3 answers · asked by Anonymous in Mathematics

if some explanation could be given, that would be great. Text just throws these terms out there while dealing with trig functions, but doesn't explain what or how to locate them.

State the period and amplitude for the following equations:
y = 4sin(2x)
y = 3cosx
y=cos(2x)

2007-11-11 11:54:24 · 2 answers · asked by dustin_r_85 1 in Mathematics

I can't remember (or seem to be able to find) the exact equation for percent ionization.. it's the same thing as percent dissociation, right? This is pertaining to acids and bases if it makes a difference..

2007-11-11 11:54:24 · 1 answers · asked by xxsoccerchickxx_84 1 in Chemistry

I know that his idea of a heliocentric universe is correct but I need some arguments for a staged debate....

2007-11-11 11:51:46 · 9 answers · asked by The Lone Trumpeter 2 in Astronomy & Space

22 + 5(6v - 1) = -63

2007-11-11 11:49:06 · 12 answers · asked by Anonymous in Mathematics

You are given a container of 1 mole of helium gas (He), and an identical container of 1 mole of oxygen gas (O2). Both gases are at STP. Which statements are true or false:

a) both gas samples have the same number of particles (molecules)
b) both gas samples have the same number of atoms
c) Both samples have the same mass
d) Both samples have the same density
e) both samples have the same average kinetic energy
f) the particles of both samples have the same average speed
g) if there was an identical pinhole in both containers, both samples would efuse at the same time
h) The actual volume occupied by the gas particles is the same for both samples
i) both are ideal gases.

2007-11-11 11:47:36 · 2 answers · asked by jessulkerz 1 in Chemistry

Neglecting energy absorbed or reflected by Earth's atmosphere, the solar energy hitting 1 square meter of Earth's surface is 1360 J/s (the solar constant). How long does it take a baseball diamond (90 ft on a side) to receive 1 megaton of solar energy? (Hint: A 1 megaton bomb produces about 4 x10^15 J.)
__________years

2007-11-11 11:44:38 · 3 answers · asked by sweetnovember4 2 in Astronomy & Space

22.6 g degrees celcius to 154.5 degrees celcius?

2007-11-11 11:42:33 · 1 answers · asked by darkraven_222000 1 in Chemistry

2007-11-11 11:42:23 · 3 answers · asked by nocevski300 2 in Engineering

If you like the paranormal and ghost hunting. Please look at my Yahoo groups page. Please post your thoughts on that page. Skeptics are welcome.
http://tech.groups.yahoo.com/group/ericlavoie1970/

2007-11-11 11:41:53 · 5 answers · asked by ericlavoie1970 1 in Paranormal Phenomena

A positive interger is one more than twice another. Their product is 78. Find the two integers. can you help me to solve this problem and explain how you did it. Thank you i need to understand how to do this word problems please give a hint of how can i solve them

2007-11-11 11:40:43 · 5 answers · asked by Silvia S 1 in Mathematics

identify the names of the groups on the periodic table?

i dont get it.
someone please help me.
[=

2007-11-11 11:40:37 · 1 answers · asked by ? 4 in Physics

2007-11-11 11:29:01 · 19 answers · asked by diamondfairy890 2 in Physics

There are comets, the sun light dying out, black holes? what is the risk of these coming? how long will it take? Would it scare everybody?
I would be scared I get worried about it because who knows when this could happen I would hope it wouldn't happen while i'm alive.

2007-11-11 11:25:24 · 13 answers · asked by Anonymous in Astronomy & Space

Lake lanier to be more specific. and does anybody know about the "muscle crisis" and when we will stop letting so much water out of the dam?

2007-11-11 11:21:47 · 3 answers · asked by Anonymous in Geography

everytime i stand under a street light, it will start blinking , the longer i stand under it the more it blinks until it becomes like a lightening show, soon as i walk away from it, it stops, then ill walk to the next one and it starts blinking, until ive walked under all the lights in the street...its not a coincidence, because i have been able to demostrate it to every single person i know, and happens every single time, all over the place, where ever i go.. I hadnt done it for a while, and last night i went for a walk down my street and it still happened, on every light i walked under.. Ive noticed it happens more intense when im charged up, like excited or angry, and only mild when im relaxed.. My sister kicked me out of her house one night cause i was angry and all the lights inside started flashing on and off, where ever i stood.. can anyone give any explanation as to why the lights react to some people,and how, whats the connection...

2007-11-11 11:19:04 · 13 answers · asked by ‡ЭЭЭ‡ 5 in Paranormal Phenomena

10 points for best answer!!

2007-11-11 11:15:04 · 2 answers · asked by Dark Beauty101 3 in Earth Sciences & Geology

2007-11-11 11:11:34 · 14 answers · asked by Tyler T 1 in Earth Sciences & Geology

5 ln|y| = 0.5t - cos(t) + 1
I need to solve for t. I'm not sure how. I know that you can't factor out a t, so what do you do? Show every little step please!!!!

2007-11-11 11:11:20 · 2 answers · asked by aba 2 in Mathematics

2007-11-11 11:08:47 · 3 answers · asked by Anonymous in Geography

What state are you currently in???

2007-11-11 11:06:22 · 19 answers · asked by Anonymous in Geography