Science & Mathematics - 12 August 2007

can i becuzz it startes in like an hour and i dont have a ride to a lake

2007-08-12 19:46:02 · 2 answers · asked by BB i 2 in Astronomy & Space

2007-08-12 19:40:43 · 17 answers · asked by the questioner 2 in Zoology

How does a transistor "amplify" current in a circuit?

2007-08-12 19:32:59 · 7 answers · asked by iqof300 3 in Physics

My teacher has a sort of humor about him....

Upon completion of an AP Calculus Summer assignment, a group of disgruntled students chase their instructor to the top of a tower. They proceed to drop the evil math teacher from the tower. The position function (in feet) of the falling teacher at time t seconds is given by:
s(t)=-16t^2+128.
The velocity of the falling teacher at time t = a seconds is given by :
lim .. s(a) - s(t)
t->a ...... a - t
Find the velocity of the teacher when t = 2 seconds.

Help would be appreciated.

2007-08-12 19:28:36 · 8 answers · asked by Tyler M 1 in Mathematics

2007-08-12 19:21:44 · 2 answers · asked by wave5tide 1 in Weather

2007-08-12 19:10:17 · 4 answers · asked by akexyaya 1 in Chemistry

im in the southern cali. in LA.
what direction in the sky do i look at?

2007-08-12 19:07:33 · 5 answers · asked by Anonymous in Astronomy & Space

i went outside for about 15 minutes and didnt see any...?

2007-08-12 19:05:06 · 23 answers · asked by Anonymous in Astronomy & Space

I can't believe I forgot this but.. please help

In basketball, I took 75 freethrows on a 10 foot hoop and I made 56, what is the percent of how many I made and how do you figure it out?

is it 75 x 0.56?

2007-08-12 19:03:29 · 6 answers · asked by Anonymous in Mathematics

a circle has a circumference of 185mm. find the area of the sector cut off by an angle of pi/5 subtended at the centre

2007-08-12 19:02:57 · 8 answers · asked by loza 2 in Mathematics

I have a urine analysis on monday and i took the klonopin last tuesday and i have a fairly high metabolism and i am lean and i was wondering how long a Klonopin would show up in a Urine Analysis if i only took a single pill

2007-08-12 18:53:14 · 1 answers · asked by Anonymous in Medicine

2007-08-12 18:53:11 · 11 answers · asked by Anonymous in Mathematics

In triangle DFG, angle G is a right angle and tan angle D = 5/7. What is the cos of angle F to the nearest thousandths?

In triangle RST, angle T is a right angle and cos of angle R =4/9. To the nearest thousandth, find the cos of angle S?

2007-08-12 18:51:07 · 5 answers · asked by Anonymous in Mathematics

2007-08-12 18:48:43 · 6 answers · asked by Anonymous in Astronomy & Space

I thought you'd see meteors appear to come out equally from all sides of a pt. of origin but I read that they will mostly go down from Perseus' head. Is this true? & why?

2007-08-12 18:43:13 · 4 answers · asked by Anonymous in Astronomy & Space

2007-08-12 18:35:22 · 3 answers · asked by Rane M 1 in Astronomy & Space

After 5 hours of house painting,Peter asked the assistance of James.Together they finished the job in 4 more hours.Had James painted in an hour after Peter started working,the job would have been finished in 7 hours.How long would it take Peter to paint the house alone?

2007-08-12 18:28:12 · 4 answers · asked by leon 1 in Mathematics

In trianlge ABC, angle A= 30, angle B= 60,
and BC = 4. What is the length of AC to the nearest hundredth?

If the length of an altitude of an equilater triangle is 5 root three, then the lenght of a side is
a) 4 b) 5 c) 5 root 3 d) 10 e) 10 root 3

2007-08-12 18:27:54 · 3 answers · asked by Anonymous in Mathematics

2007-08-12 18:23:35 · 12 answers · asked by Healy2006 2 in Mathematics

2007-08-12 18:21:20 · 7 answers · asked by JAMES 4 in Physics

Are there any arguments other than “creationism” against it? What are they?
I’m trying to convince my cousin of evolution and I want to make sure I cover all my bases, but any search I do comes up with copious Creationist websites and articles and little else. So I was wondering… what arguments are there other than the religious ones?

2007-08-12 18:11:52 · 12 answers · asked by Anonymous in Biology

2007-08-12 18:10:29 · 4 answers · asked by Troasa 7 in Astronomy & Space

The void of space that contains no familiar molecules... are there any recorded signs thus far of substance as the imperfect vacuum. To say, is the blackness without hydrogen present or any other familiar thing, deffinatly empty... or possibly filled with somthing very hard to detect with the familiarity of nature we are given on this planet? Have we not the intruments devised to map the structure of what seems as mysterious dark matter... or are there pieces that just haven't been put together to show evidence of the void unifying all things in the known and white unknown universe saying nothing in either isn't touching something from both being that all things are connected as far as is extending between dimensions?

2007-08-12 18:05:43 · 8 answers · asked by countrthght 1 in Physics

i'm in california and i know that everybody knows that they're in the north-eastern sky but where!!!! high? low??

okay so what degree is it from the ground.. is it in the sky or on the horizon?

where ?? l

2007-08-12 18:04:13 · 4 answers · asked by Katie 4 in Astronomy & Space

Pretend the "O" is a ball what four forces would be attacking upon it? from both sides and vertically.


?
/\
?< O >?
\/
?

2007-08-12 18:00:49 · 3 answers · asked by questioneer112 1 in Physics

i mean it said 9pm-5am.and still i havent seen one

2007-08-12 17:56:47 · 9 answers · asked by ddlbg9 2 in Astronomy & Space

I'd really like to see the Perseid meteor shower. I read on yahoo today that it is supposed to be most visible tonight. Let me just say that I don't know anything about this kind of stuff
I have two questions.
First, is there any possible way that I could see it... I live in Philadelphia (a city).
Second, if you think that there is any way for me to see it (even with the city lights), which direction should I look? Or does that even matter?

Thanks in advance :]

2007-08-12 17:50:46 · 8 answers · asked by Allie 4 in Astronomy & Space

2007-08-12 17:43:54 · 8 answers · asked by Your friend 1 in Astronomy & Space

The base of a triangle is 17. The other two sides are integers and one of the sides is twice as long as the other. What is the longest possible length of a side of the triangle?
a) 17 b) 32 c) 33 d) 35 e) longest side can be any length.

If the sides of a regular pentagon are extended through the vertices. then the plane will be divided into how many nonoverlapping regions?
a) 6 b) 1 c) 13 d) 15 e) 16

2007-08-12 17:42:01 · 6 answers · asked by Anonymous in Mathematics

2007-08-12 17:39:15 · 6 answers · asked by agros71 1 in Astronomy & Space