Science & Mathematics - 31 July 2007

a) dy/dx+4y=e^-x ,y(0)=4/3

2007-07-31 04:44:30 · 5 answers · asked by Anonymous in Mathematics

I mean, the only evidence for it is in comic books, and the only people demonstrating it are proffessional illusionists.

I can understand having faith in something without proof, but this is way beyond that. It seems 2 or 3 people ask everyday about this. Why?

Why ask how to develop powers, its obvious noone else knows, or there would be people who could do it.

2007-07-31 04:30:12 · 8 answers · asked by Anonymous in Paranormal Phenomena

why does it have to be so hot??!?!


and i dont want a scientific answer either

2007-07-31 04:28:40 · 2 answers · asked by t_whidden 2 in Weather

2x^2 + 9x - 5 = 0
3g^2 - 16g + 5 = 0
20a^2 + 13a + 2 = 0

2007-07-31 04:27:05 · 6 answers · asked by Anonymous in Mathematics

Find the lowest common denominator for the group of denominators.

x^2 - x - 2 and x^2 - 3x +2

2007-07-31 04:26:24 · 1 answers · asked by Anonymous in Mathematics

these are practice questions.. not test ones just so you know


1.)

Identify the expression that represents the "sum of the first 3 consecutive integers."

(x) + (x+1) + (x+2) or 3x +3

(x) + (x+2) + (x+4) or 3x +6

(x) + (x+1) + (x+3) or 3x +4

(x) + (x) + (x) or 3x


2.)

Identify the expression that represents "the sum of the first 3 consecutive EVEN integers."

(x) + (x+1) + (x+2) or 3x +3

(x) + (x+2) +(x+4) or 3x +6

(x) + (x+1) + (x+3) or 3x +4

(x) + (x) + (x) or 3x

3.)

Identify the expression that represents the "sum of the first 3 consecutive ODD integers."

(x) + (x +1) + (x +2) or 3x +3

(x) + (x+1) + (x+3) or 3x +4

(x) + (x+2) +(x+4) or 3x +6

(x) + (x) +(x) or 3x

2007-07-31 04:13:31 · 3 answers · asked by Anonymous in Mathematics

a friendly work debate. 4-3 infavor of gorilla so far

2007-07-31 04:04:07 · 9 answers · asked by R. S 3 in Zoology

Space scientist like Sunitha Willaims and others when we saw in the TV they are floating inside the aircraft. As my knowledge, We can float only in the vacuum where we have no body weight . But, if there is a vacuum. how could they breath?

2007-07-31 04:00:29 · 11 answers · asked by Anonymous in Astronomy & Space

I found this huge caterpillar in my back yard. It is about 3 1/2 inches long, and as thick as my thumb. It's flesh colored (but is faint green on its underside, so it may have been true green at one point), not hairy or bristly, and has only 1 very small horn on the end of it. It has some very, very faint pale cream or yellow dots on the side of it (one on each segment), and the same color of lines going diagonal up its body.

Can you name this mystery creature? If you can, and find a pic on the web for me, then I'll give you the best answer points...

Thanks!

2007-07-31 03:58:26 · 3 answers · asked by glitterybunnies 2 in Zoology

When I was in school I remember they were trying to teach us the standard units of measure at the same time as the new Metric system. Then all of a sudden they announced no bother they were not going to the Metric system. What was behind the decision to switch and then not to?

2007-07-31 03:58:05 · 8 answers · asked by hydra1970 2 in Mathematics

Im practicing but ive never learned these, ( I know pretty lame)

(-5^2)
(-5)^2

-6 - 4(2 -2^3)


^=squared/cubed. lol.

PLEASE

2007-07-31 03:53:08 · 9 answers · asked by Anonymous in Mathematics

3 u^2 y^3 z^3 and 14 u^7 y^2

2007-07-31 03:50:31 · 6 answers · asked by Brandon 1 in Mathematics

2007-07-31 03:47:40 · 7 answers · asked by Anonymous in Mathematics

1) if you rearrange the letters in 'AABLLWY', you would get the name of.....?

a) A bird
b) A Mammal
C) A Mountain
d) None of the above

2. Find the odd man out?

a) Day
b) Set
c) Burn
d) Dance

3) What is symoblically represented by the following series?

H I J K L M N O

a) Earth
b) Sky
c) Water
d) Fire

2007-07-31 03:47:23 · 5 answers · asked by chekku jane 1 in Mathematics

can you please list all of the conversions (length, capacity, weight) from smallest to largest? just the simple stuff ya kno tbsp, tsp, gram,kg, cm, in ( dont go into the complicated stuff)

ex.

10.00 mm = 1cm
2.54 cm = 1 in
etc.
etc.

2007-07-31 03:41:10 · 3 answers · asked by Tina 2 in Mathematics

The choices are: 40, 42, 44, 46

I cannot figure this out...I just cannot see the pattern!

Please show how you got it as well...thank you!! And no this is not homework, just a little quiz I am taking for fun :-)

2007-07-31 03:30:26 · 9 answers · asked by kiskris 2 in Mathematics

okay, my letcerur for mechanics of fluids asked me about this question and damn!! i can't answer it eventhough I'm in engineering course,so people who knows the answer,please help me!! thank you.

2007-07-31 03:25:14 · 9 answers · asked by timmydaturkeyturtle 2 in Engineering

What are the components of a nucleotide?

A. A nucleus
B. A phosphate group
C. A nitrogenous base
D. A 5-carbon sugar
E. B, C, and D

2007-07-31 03:20:35 · 9 answers · asked by Anonymous in Biology

1.(a)Lime juice was electrolysed using carbon electrodes.
What is produced at the cathode?Write a half equation for
the reaction.

(b)A student intends to electroplate an iron key with a suitable metal to beautify it.Design a laboratory experiment to electroplate the iron key.Your answer should consist of the following:
(i)Chemicals required
(ii)Procedures of the experiment
(iii)Diagram showing the set -up of apparatus
(iv)Chemical equation involved in the reaction
(v)Observation

2007-07-31 03:18:27 · 1 answers · asked by Cloudy 1 in Chemistry

consider the reation 2H2 + O2 --------> 2H2O

What is the ratio of the initial rate of the appearance of water to the inital rate of disappearance of oxygen?

2007-07-31 03:15:35 · 1 answers · asked by Anonymous in Chemistry

2007-07-31 03:15:34 · 3 answers · asked by Hari K 2 in Chemistry

I know the answer seems obvious, but it seems like when you see the moon in the sky its always the same sky with the craters in the same formation. Why is it that we never see the other side? I really am curious so don't blast my question please.

2007-07-31 03:15:23 · 11 answers · asked by Balrog 2 in Astronomy & Space

please help me!!!!!!!!!!!!!!!!!!!!!!!!!!

2007-07-31 03:14:40 · 6 answers · asked by Anonymous in Physics

A car is traveling along a straight road at a velocity of +37.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is 1. For the next five seconds, the car slows down further, and its average acceleration is 2. The velocity of the car at the end of the fifteen-second period is +20.6 m/s. The ratio of the average acceleration values is 1/2 = 1.52. Find the velocity of the car at the end of the initial ten-second interval.
__m/s

2007-07-31 03:13:14 · 2 answers · asked by Santina E 1 in Physics

The average rate of disappearance of ozone in the atmosphere in the reation 203 (g)--------> 3O2 (g) is found to be 9.00 x 10^-3 atm over a certain interval of time. What is the rate of appearance of O2 during this interval?

2007-07-31 03:12:21 · 2 answers · asked by Anonymous in Chemistry

This email is circulating around the internet. Is it true or just won of the many hoaxes we all get in emails?

Two moons on August 27, 2007

*27th Aug the Whole World is waiting for.............*


Planet Mars will be the brightest in the night sky
starting August.

It will look as large as the full moon to the naked
eye. This will cultminate on Aug. 27 when Mars comes
within 34.65M miles of earth. Be sure to watch the sky
on Aug. 27 12:30 am . It will look like the earth has
2 moons. The next time Mars may come this close is in
2287.

Share this with your friends as NO ONE ALIVE TODAY
will ever see it again.

2007-07-31 03:06:20 · 11 answers · asked by jblggs 1 in Astronomy & Space

i heard december 22 2012

2007-07-31 03:04:54 · 15 answers · asked by Anonymous in Earth Sciences & Geology

i need this topic in front of my classmates...

pls help me..
pls give me information....

2007-07-31 03:04:51 · 2 answers · asked by regine t 1 in Earth Sciences & Geology

If not telll me the link where to get the information from.......please its urgent........................

2007-07-31 03:02:07 · 2 answers · asked by mayank t 1 in Engineering

can i see it stop if im on a faster ship ? does that mean i am stopping time ?

2007-07-31 03:00:33 · 11 answers · asked by Anonymous in Astronomy & Space