Science & Mathematics - 4 December 2007

2007-12-04 03:11:02 · 2 answers · asked by allee010 1 in Physics

2007-12-04 03:10:55 · 12 answers · asked by Yogi 2 in Astronomy & Space

There is a group of people who insist that the Earth is stationary and that the sun actually rotates it,instead of the other way around. Do you think this is religious propoganda?What proof is there of either?(I don't know much about this I'm afraid), Just wondering if anyone can shed some light on the subject. Thanks

2007-12-04 03:10:47 · 15 answers · asked by Anonymous in Astronomy & Space

2/3x+9=-21
-9 -9
2/3x=-30
_ _
2/3 2/3

k the lines above the 2/3s r supposed to bigger or longer, actuly i dont get it but yaa...my friend tryed to show me with a different problem and as u can see its probably wrong because i dont get it it so can anyone help me and explain how to do this, best answer goes to the one that looks correct and the polite one that tells me nicly ..sorry but there has been rude people out there....ha!good luck because im still worken on other math junk...thnx to all answers in the mean time

2007-12-04 03:09:56 · 4 answers · asked by ♥FuNkeE KiitTeN♥ 3 in Mathematics

How many sigma and pi bonds does C3H6 contain?

2007-12-04 03:09:34 · 4 answers · asked by Anonymous in Chemistry

I have read that the particles in a solid are fixed but vibrate on their fixed points.But I have also
read that if you place samples of metals like lead and gold against each other for a period of time.Particles of lead is found in the gold and gold found in the lead.This is all from the same science book.Was I misinformed.Someone please help.


P.S This is for a test.Please can the answers be accurate

2007-12-04 03:09:14 · 1 answers · asked by Sam L 1 in Chemistry

eagles and there habitat

2007-12-04 03:09:10 · 3 answers · asked by eclcdes 1 in Zoology

2007-12-04 03:08:21 · 4 answers · asked by Yogi 2 in Earth Sciences & Geology

that an unheated fish bowl/tank will be the same temp? I believe humidity plays a major role in the resulting temp of an unheated fish bowl/tank at room temp. For example, if room temp is 72 degrees this does not necessarily mean the water in an unheated bowl/tank will be the same, correct? I am trying to explain to someone that they need a tank heater to ensure a consistent temperature in a fish tank because ambient air temp doesn't necessarily translate into that being the temperature of the water.

2007-12-04 03:07:26 · 5 answers · asked by Finatic 7 in Earth Sciences & Geology

2007-12-04 03:07:19 · 11 answers · asked by Yogi 2 in Physics

school work please answer

2007-12-04 03:06:58 · 1 answers · asked by Kitchen Man Fourteen Ian Oden 2 in Earth Sciences & Geology

Identify the vertex and the axis of symmetry of the parabola. Identify points corresponding to P and Q.

http://i3.photobucket.com/albums/y81/slipknotme/i0000037.gif

a.
(–1, 1), x = –1
P'(0, 2), Q'(–3, 5)

b.
(1, –1), x = 1
P'(–2, 2), Q'(2, 2)

c.
(1, –1), x = 1
P'(0, 2), Q'(–3, 5)

d.
(–1, 1), x = –1
P'(–2, 2), Q'(2, 2)

2007-12-04 03:06:04 · 2 answers · asked by Anonymous in Mathematics

that an unheated fish bowl/tank will be the same temp? I believe humidity plays a major role in the resulting temp of an unheated fish bowl/tank at room temp. For example, if room temp is 72 degrees this does not necessarily mean the water in an unheated bowl/tank will be the same, correct? I am trying to explain to someone that they need a tank heater to ensure a consistent temperature in a fish tank because ambient air temp doesn't necessarily translate into that being the temperature of the water.

2007-12-04 03:06:03 · 9 answers · asked by Finatic 7 in Physics

2007-12-04 03:03:28 · 10 answers · asked by AlwaysWondering 5 in Astronomy & Space

is it possible for this matter to be in another dimesion thus creating a hard to measure or even detect happening.garry xxxxx

2007-12-04 02:58:39 · 9 answers · asked by G 5 in Physics

^ means the number next is to that power

Simplify
1. (-3x^3-5x^6+5)+(7x^6+7-9x^3)

Simplify

2. (7x^2-5x^4+5)+(9x^4+9-3x^2)

Simplify

3. (-3x^5+6x) - (-8x-3-2x^5)

Simplify

4. (2x^3+x-1) - (8x^3-4x-8)

Simplify

5. (x^3+9x-2) - (-6x^3-8x-3)

2007-12-04 02:58:20 · 4 answers · asked by Anonymous in Mathematics

Hi, I needs some math help, only 3 questions, thanks. :)

1) Solve: x2-75=0

2) Graph the parabola, y=-x2+5

3) Find the term that must be added to both sides of the equation so that the equation can be solved by the method of completing the square: x2-10x=3

a) 25
b) 100
c) 50
d) -3

Thanks again. :)

2007-12-04 02:52:51 · 3 answers · asked by Anonymous in Mathematics

A baseball is thrown at an angle of 25 degrees relative to the ground at a speed of 23.0m/s.If the ball was caught 42.0m from the thrower,how long was it in the air?how high was the tallest spot in the ball's path?

A quarterback throws the football to a stationary receiver who is 31.5m down the field.If the football is thrown at an initial angle of 40.0 degrees to the ground,at what initial speed must the quarterback throw tha ball for it to reach the receiver?What is the ball's highest point during its flight?

2007-12-04 02:51:34 · 1 answers · asked by aforte 1 in Physics

Appear to be five lumbar planes, Alignment is smooth, normal lordosis, conus is normal, lower thoracic discs show degenerative change with Schmorl's node formation, no significant posterior bulging at these levels, there is a 2mm broad-based disc bulge L1-2 and L5-S1 shows 2 mm midline bulge. What does this all mean?

2007-12-04 02:50:29 · 3 answers · asked by Dj D 1 in Medicine

that an unheated fish bowl/tank will be the same temp? I believe humidity plays a major role in the resulting temp of an unheated fish bowl/tank at room temp. For example, if room temp is 72 degrees this does not necessarily mean the water in an unheated bowl/tank will be the same, correct? I am trying to explain to someone that they need a tank heater to ensure a consistent temperature in a fish tank because ambient air temp doesn't necessarily translate into that being the temperature of the water.

2007-12-04 02:48:42 · 14 answers · asked by Finatic 7 in Weather

2007-12-04 02:37:23 · 19 answers · asked by ♥ 4 in Astronomy & Space

Our star the sun is half way through it's life span before it gobbles up the inner planets as it expands using up the last of its fuel. Will the human race evolve enough to be able to colonise other parts of space and escape far enough away to survive as a species or will we destroy ourselves through war or destroy our planets ability to sustain us before we are capable of such feats as to colonise other planets or moons of jupiter or saturn etc..?

2007-12-04 02:36:47 · 27 answers · asked by winter gerzy 2 in Other - Alternative

tell me how you solve the problem please

2007-12-04 02:35:46 · 3 answers · asked by Anonymous in Mathematics

how many pounds of peanuts should he add to the cashews to obtain a mixture that will sell for $3.75 per pound?

2007-12-04 02:33:24 · 2 answers · asked by Success 1 in Mathematics

These Psi Experiments..

http://www.fourmilab.ch/rpkp/experiments/clockface/

http://www.fourmilab.ch/cgi-bin/uncgi/Psiclock

http://www.fourmilab.ch/cgi-bin/uncgi/Psiclock

.

2007-12-04 02:29:51 · 2 answers · asked by mikey 3 in Other - Alternative

2007-12-04 02:28:39 · 1 answers · asked by halfkidd 1 in Biology

:]
2z - 4 (9-3z) = 62

whats z?


and,

-34 = 3d+8/3

please help due next hour!

2007-12-04 02:28:05 · 6 answers · asked by Anonymous in Mathematics

Ok i've been trying to figure out how to do equations with varables on both sides but i don't really understand can sombody solve this problem and put steps to it please?thankyou =D

7x+12=13x

2007-12-04 02:23:57 · 11 answers · asked by Bloo 2 in Mathematics

The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t ^2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 5 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.) Choose the answer from the following:

1.6 seconds

1.8 seconds

2.3 seconds

1.7 seconds


The hypotenuse of a right triangle is 2.8 units long. The longer leg is 1.8 units longer than the shorter leg. Find the lengths of the sides of the triangle.

2.8, 2.7, 0.9

2.6, 0.8, 2.8

0.7, 2.5, 2.8

2.8, 1.8, 4.7

2007-12-04 02:22:58 · 2 answers · asked by krd004 2 in Mathematics

2 z - 4 (9-3z) = 62
whats z?

And

-34 = 3d+8/3

Whats d?

Please help, due next hour!

xxxxxx

2007-12-04 02:20:51 · 10 answers · asked by Anonymous in Mathematics