Science & Mathematics - 4 October 2006

a. -3
b. 3
c. 1
d. 1/2

2006-10-04 03:15:54 · 11 answers · asked by cave_21man 1 in Mathematics

All three boxes are made from the same material. Explain at the molecular/atomic level how heat is transferred from box A to Box C. Estimate the final temperature of Boxes A,B and C. What law is this process describin? State the Law.

2006-10-04 03:15:26 · 7 answers · asked by Aljeet 1 in Physics

These are two seperate equations.

-3x^0(2x - 3) - (-2^0) - 2 = 5(X - 3^0)2

and

-3 -3^0 -3^2(2x - 5) -(-2x - 3) = -x^0(x - 3)

both should come out to fractions, if I am correct. I get a little mixed up when i have numbers to the zero power. For the first one I got 8/9ths, and for the second, 41/15. I may have fluked on a step or two..

2006-10-04 03:15:07 · 2 answers · asked by Ryan 1 in Mathematics

a. x-4=y
b. -y=4+x
c. y=x-4
d. y=x+4

2006-10-04 03:13:47 · 9 answers · asked by cave_21man 1 in Mathematics

2006-10-04 03:11:44 · 20 answers · asked by shelford555 2 in Astronomy & Space

2006-10-04 03:09:03 · 14 answers · asked by Allergic To Eggs 6 in Chemistry

I'm curious about how these work but I don't know much about Quantum Mechanics. I checked Wikipedia, but the info on there assumes you have a base understanding of Quantum Mechanics.

Can anyone explain these things in laymans terms without using a lot of technical lingo? Or is it simply not possible to understand these concepts without first understanding Quantum Mechanics?

2006-10-04 03:05:36 · 4 answers · asked by Byakuya 7 in Physics

2006-10-04 03:05:06 · 18 answers · asked by Andrea P 2 in Earth Sciences & Geology

(1) concentrated phosphoric acid is 85.0 % H3PO4 by mass. The density of the solution is 1.70 g/mL. What volume is required to provide 2.50 grams of H3PO4?
_________en.

(2) What is the maximum yeild of isopentylacetate that can be prepared from 3.58 g of isopentanol and 4.75 g of acetic acid?
___________________g.

2006-10-04 03:03:49 · 6 answers · asked by ibrakeforchucknorris 1 in Chemistry

Do a food taste the same to two people?even though they may not like the same thing? How do we able taste flavour?

2006-10-04 03:02:25 · 5 answers · asked by joe 4 in Other - Science

Can someone help me with this project... I just wanna need help if you have an information about Series And Parallel.. Do you have an abstract, theory, Experimental Set-up, Results and Discussion, Conclusion and Recommendation. Thanks just send it to my email add maeda_beauty11@yahoo.com. I hope that you can help me with this....

It starts like this
Abstract
theory
Experimental Set-up
Results and Discussion
Conclusion and Recommendation.

2006-10-04 03:00:48 · 5 answers · asked by Mary Eda 2 in Physics

Out of sheer curiousity, I'd like to know about how cold and how hot would you have to make a place to make it unbearable for ANY sort of life form?

Is there a limit to life?

Or is it that in some far-off planet in a far-off galaxy, life thrives in climates which are beyond earthly limits?

Are the elements of periodic table just part of a narrow spectrum of the vast elements of universe?

I know the question cannot be answered completely but, I'd love to check out some facts of life.

Thanks a lot!

2006-10-04 02:59:07 · 6 answers · asked by Abhyudaya 6 in Biology

2006-10-04 02:59:05 · 2 answers · asked by mAuReEn 1 in Biology

2006-10-04 02:57:30 · 11 answers · asked by Andrea P 2 in Weather

I am an engineering student at Purdue University and would like to become fluent in a language which will open more opportunities for me upon graduation. Some advisors have said Japanese, Some say Chinese, while still some Spanish or German. I just want to take what is most used within the engineering profession to be an asset for a future employer. Thank you all for answering!

2006-10-04 02:51:08 · 11 answers · asked by vwj73 3 in Engineering

What is the number..?

2006-10-04 02:48:59 · 8 answers · asked by Ryan 1 in Mathematics

I have in mind a water recyling system, we have severe water supply shortages.
I plan to take the water from a commercialy available waste water treatment plant, pump it into a 200 litre holding tank, gravity feed for toilet flushing in the house.
To do this safely and meet governemt rules, i need to be sure of killing bacteria. I'd like to conserve power also, so it looks like UV light is the go, I have learned that the water needs to be at least 55 celcious for these to occur.
How many light globes are needed for no more then 50 litres per hour treatment? Is 55 degrese enough? Is Polyethylene a suitable material for UV lights.
I have in mind running the water through a container exposed to this light source before the 200L storage.
Thanks for you help with this, I have been weeks on it, and 5 mins here I have made some ground.

2006-10-04 02:48:26 · 4 answers · asked by Anonymous in Chemistry

2006-10-04 02:47:08 · 10 answers · asked by victorschool1 5 in Mathematics

In movies and comics, we often see a digital image of a person dancing on the screen asking for help.

If it was to be made possible in real life- how would you do it?

2006-10-04 02:38:39 · 12 answers · asked by Anonymous in Physics

2006-10-04 02:38:16 · 16 answers · asked by Anonymous in Earth Sciences & Geology

i'm trying to buy moving boxes online.

2006-10-04 02:36:32 · 8 answers · asked by mikkey07 1 in Mathematics

Cool or Scary?

I love them, but I don't like them to be too dangerous!

2006-10-04 02:35:47 · 10 answers · asked by Becsteroni Magl 2 in Weather

why they kidnap us? (on film)

2006-10-04 02:35:25 · 21 answers · asked by joko pramono 1 in Astronomy & Space

the 1st eqn. is "2x+3y=6"
and the 2nd eqn. is 4x+6y=12

anyone knows how??
PLS. help!!

2006-10-04 02:33:14 · 10 answers · asked by vanessa b 1 in Mathematics

I understand that there are safety valves on the boiler but other than that what other sfety devices installed on the boiler

2006-10-04 02:30:50 · 2 answers · asked by Anonymous in Engineering

I remember being told in school 1st year physics it was a wave, then at Standard Grade (Scottish) it became a particle, I think as my memory has gone, and then in Higher soemthing else. Have Physicists decided definitively yet?

2006-10-04 02:30:29 · 18 answers · asked by WeirdNA 2 in Physics

2006-10-04 02:29:06 · 4 answers · asked by Dustin M 1 in Other - Science

Our teacher asked us this, and I'm not even sure what he means.

2006-10-04 02:25:04 · 5 answers · asked by Anonymous in Mathematics

2006-10-04 02:23:04 · 21 answers · asked by leanne02uk 2 in Other - Science

2006-10-04 02:22:28 · 4 answers · asked by Anonymous in Mathematics