[Selected]: All categories ➔ Science & Mathematics
Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology
Why sir isaac newton chose to publish works of Ibnal Haitham to become scientist.Ibn al haitham gave the Refraction of light through transeparent object, discovered optics and magnifying glass and discovered gravity as force, in 1020 A.D
2006-10-29 15:39:33 · 5 answers · asked by Anonymous in Physics
If it is a singularity, then how does this singularity form back into into 4 dimensional space?
2006-10-29 15:37:29 · 4 answers · asked by Anonymous in Astronomy & Space
what is the limit x-> 0 of sqrt(x)??
2006-10-29 15:36:49 · 3 answers · asked by aznskillz 2 in Mathematics
2006-10-29 15:36:37 · 9 answers · asked by Nurul H 1 in Geography
light particles have mass and can be affected by gravity,they also can travel hundreds of thousands of light years through space unchanged carrying images of its origine.
how are light particles created and what part of an atom do they come from.
what creates its propulsion and determines its direction.
2006-10-29 15:36:30 · 2 answers · asked by aalbatross 2 in Physics
The center of gravity of a loaded truck depends on how the truck is packed. If it is 4m high and 2.4 m wide and its CG is 2.2m above the ground how steep a slope can the truck be parked on without tipping?
2006-10-29 15:35:54 · 3 answers · asked by Anonymous in Physics
The sun comes up at various points on the horizon, depending on the time of the year. Summer it comes up close to East, Winter South of East.
2006-10-29 15:27:30 · 5 answers · asked by Anonymous in Astronomy & Space
1.Bob invested $21,000, part at 18% and part at 8%. If the total interest at the end of the year is $1,980, how much did he invest at 18%?
2.Solve the system by addition.
–3x + 4y = –16
x – 2y = 12
3.Graph f(x) = 3x + 2.
4.Solve the following system of linear inequalities by graphing.
x – 2y less than equal to 4
x greater than equal to 4
2006-10-29 15:25:59 · 3 answers · asked by Felton T 1 in Mathematics
2006-10-29 15:23:00 · 8 answers · asked by Anonymous in Mathematics
That when you die your hair, nose and nails still grow??
2006-10-29 15:21:01 · 19 answers · asked by Nadia D 1 in Other - Science
I have to make a model of any part of the muscles of the body and it has to show how it works. Does anyone have any websites that will help with this or any ideas on materials to use? I am lost
2006-10-29 15:19:32 · 4 answers · asked by Anonymous in Biology
2006-10-29 15:17:38 · 13 answers · asked by darkangelinslc 1 in Physics
I'm just wondering if any of you engineers have used Frobenius' method to solve an engineering problem before.
2006-10-29 15:17:34 · 2 answers · asked by Anonymous in Engineering
2006-10-29 15:16:24 · 2 answers · asked by Diane W 1 in Astronomy & Space
For Halloween trick-or-treating tonight, five 5th grade friends, including
the Smith girl, decided that rather than get new costumes or wear last
year's they would exchange their outfits from last Halloween among
themselves so that each would have a "new" costume for the event.
The five trick-or-treaters are Carrie, the Jones girl, the girl who went
trick-or-treating last year as the Bride of Frankinstein, and the girls who
are wearing the Princess Leia and Xena costumes this year.
Alice, who isn't the Lugosi girl, is masquerading as the Wicked Witch
tonight.
The Hitchcock girl's costume for this year isn't the one Erin wore last
Halloween.
The one who is dressing up as Princess Leia tonight, who isn't Dana Price,
didn't wear the Xena costume last year.
Betsy, who isn't the Jones girl, didn't wear the Wicked Witch outfit last
year.
The one going trick-or-treating tonight as the Bride of Frankinstein isn't
Carrie.
The Lugosi girl isn't the one who wore the Cinderella costume last
Halloween.
The girl who wore the Princess Leia costume last year, who isn't the Lugosi
girl, isn't dressing as Xena this year.
2006-10-29 15:15:13 · 1 answers · asked by Jeffrey Z 1 in Mathematics
4x - y = -2 solve for y
2006-10-29 15:14:32 · 12 answers · asked by TheEnigma 1 in Mathematics
2006-10-29 15:13:25 · 22 answers · asked by chip b 2 in Physics
Don't you hate how it'll be cold in the morning and then warm later on so you have to dress in layers, or buy a fall coat you might not even get much use out of cause it could still be too hot for it.
2006-10-29 15:12:57 · 11 answers · asked by Mr. Basketnutz! 2 in Weather
2006-10-29 15:12:50 · 5 answers · asked by Anonymous in Astronomy & Space
a ball sliding from zero velocity through a concave arc. The question is (what is the velocity of the ball when passing 0.75r).
(r=radius of the arc)...so the ball is sitting above and then it will be left to go down under the influence of gravity...the ball will go down to the lowest point in the arc (or cycle) then it will rise up again to the other direction...can I calculate its velocity when it pass 0.75 r?
2006-10-29 15:09:15 · 3 answers · asked by aaaa e 1 in Physics
1/4(x-3) = 2 solve for x whats x
2006-10-29 15:07:35 · 11 answers · asked by TheEnigma 1 in Mathematics
Is there an easy to obtain material thats transparent to infrared? It doesnt matter wheter or not its transparent to visible and uv
2006-10-29 15:06:58 · 7 answers · asked by ? 3 in Engineering
if their are more name them
2006-10-29 15:06:24 · 8 answers · asked by joe d 1 in Other - Science
They say that the Universe is expanding
Into what? What is currently in the area into which it is expanding?
2006-10-29 15:06:06 · 20 answers · asked by videoviewni 1 in Physics
what is the numerical coefficient of x2 (tiny 2)
i thought a numerical coefficient would i.e. be 4 in 4x, but im stumped because it has the squared number. herlp??
2006-10-29 15:03:42 · 6 answers · asked by violet 2 in Mathematics
2006-10-29 15:03:22 · 18 answers · asked by lollylou 3 in Astronomy & Space
ultrasonic sound generators that repel animals and fit to motor vehicles
2006-10-29 15:01:20 · 2 answers · asked by john t 1 in Zoology
Graph and then choose the correct plot of the quadratic function.
f(x)=1/3 x^2 - 4/3
Standard form is f(x) = a(x - h)^2 + k
This parabola opens upward since the leading coefficient (a) is positive.
y-intercept = - 4/3
x-intercept = 2
How do you determine the vertex if it's not stated. I'm getting a little confused...but is the vertex (0, - 4/3)?
Thanks.
2006-10-29 15:01:13 · 3 answers · asked by mshealerless 3 in Mathematics
It is the reaction scheme for the egg shell dissolved in vinegar:
CaCO3 + CH3COOH --> ?
I should know this, but I'm can't think of it today!
Also does anyone know the functions of Galactose and Maltose?
I'm trying to finish my lab notebook.
Any help is greatly appreciated!
2006-10-29 14:58:45 · 3 answers · asked by Anonymous in Chemistry
if i were to attach an object to a tennis ball with velcro, it would stick, but if I were to spin it fast enough [like a planet}, centrifugal force would force the object to fly away from the ball, right?
So how do "spaceballs" (planets, etc) manage to glue objects to their surface?
2006-10-29 14:58:19 · 12 answers · asked by Anonymous in Physics
Questions asked on 29 October 2006:
Showing 211 to 240 of 932 questions
Questions asked on other days: