Science & Mathematics - 10 February 2007

Work would be nice, but not necessary.

2007-02-10 01:40:31 · 10 answers · asked by hallofamer20 2 in Mathematics

what type of chemical reaction can pentane undergo?

2007-02-10 01:38:21 · 3 answers · asked by danity0414 2 in Chemistry

When formulating the annual operating budget in poters department it is necessary to determine the number of man days required to cover various work programs.
if the porters work programs calls for 2,254 daily tours 2,263 saturday tours and 1,980 sunday tours(including holidays) the the number of man-days which are normally required to cover the one year work program is

2007-02-10 01:32:47 · 6 answers · asked by Anonymous in Mathematics

There's a Piddletown in Dorset, and a Wetwang in Yorkshire, and a Misery in Germany. I'm sure there's plenty more ... what ones do you know of that make you laugh?

2007-02-10 01:31:01 · 37 answers · asked by gorgeousfluffpot 5 in Geography

What is the sine of twice the angle whose cosine is x?

sin(2arccos(x))=?

2007-02-10 01:30:27 · 1 answers · asked by Mehoo 3 in Medicine

2007-02-10 01:29:50 · 10 answers · asked by Trisha T 1 in Earth Sciences & Geology

Is this expensive or can you get it on the NHS, whats the recovery period, and has anyone had it done, was it worth it

2007-02-10 01:25:51 · 12 answers · asked by Anonymous in Medicine

I asked this question in the Physics section, and didn't get much help. I want to move a metre in exactly one second. I also want to start stationary and end that way too.

As you all know, distance=velocity*time for coasting, and while accelerating, distance=.5*acceleration*time^2

I would like to acclerate for a period, perhaps coast for a bit, and then deccelerate equally and oppositely, so my accelerations will be a, 0, then -a for the three stages of this movement. What my real question is, and I apologize if I've beat around the bush, is what is the relationship between acceleration and distance coasted. If you can express one as a function of the other, great, and it would be even better if you could solve in terms of T and D, intstead of using 1 second and 1 metre for those values.

2007-02-10 01:24:56 · 3 answers · asked by Mehoo 3 in Mathematics

2007-02-10 01:23:24 · 6 answers · asked by sbaig_27 1 in Chemistry

Calculate the daily interest rate on a annual rate of 17.7%.

2007-02-10 01:21:56 · 4 answers · asked by Anonymous in Mathematics

2007-02-10 01:18:47 · 1 answers · asked by bindhiya 1 in Engineering

2007-02-10 01:16:17 · 4 answers · asked by barzuri 1 in Biology

Here is a problem i am trying to solve ,

Problem :
----------------
triangle ABC is a right angled isosceles triangle and AB is the diameter of a circle . If AC=6 cm , find the area common to the triangle and the circle.


My Question :
-----------------

how do i draw the figure for this problem ?

i see AB is the diameter of the circle but I am stuck, where does this point C lies ? does the point C lie on the circle ?
or the point C lies outside of this circle ? I am bit confused to draw the triangle.

and also which two sides will be of same length (isocles) ?

could you please help me to understand this problem and draw the figure ?


please let me know how to draw this figure IN STEPS


Thanks

2007-02-10 01:15:43 · 6 answers · asked by sanko 1 in Mathematics

I m preparing electric cells which will take biological electrons as source
1 cell will produce 0.8 volts and 12 milliamperes.
it will be in dc
I will hav approx 200 cell like this in 1 system
I wll be using a dc to ac converter to convert it
so my questions are
1) shd I connect cell in series or parlell
2)If i want to run a computer(I think it will take 120 volt n 2 amp ac )how much dc curent n ampere shd I produced
someone told me that if I produce 2am and 12 volt
that would be enough.
plz tell

2007-02-10 01:15:40 · 3 answers · asked by sameer r 1 in Engineering

My Mathematics tutor send me an email, about how to solve a certain type of Math problem.

I asked her, how would you solve the following question.

Squareroot (x+3) = P where the task is to make x the subject...

Now she used this method, but i have my doubts if it is correct or not:

Squareroot(x+3)=P
take 3 over to the other side so Squareroot x=P-3
To get rid of the squareroot bring it over to the other side
and hence the answer will be x=P^2 - 3.

2007-02-10 01:15:37 · 13 answers · asked by Miss LaStrange 5 in Mathematics

2007-02-10 01:15:04 · 10 answers · asked by may 2 in Zoology

2007-02-10 01:15:00 · 3 answers · asked by Anonymous in Zoology

Ice is less dense than water so as far as the North pole goes sea level should receed which should balance the south pole melting. ... any one?

2007-02-10 01:14:59 · 5 answers · asked by Anonymous in Earth Sciences & Geology

Did the bang push out equaly in all directions so that say, our universe went to the east and other universes went north, south and west. is the bang expanding as a spherical ballon and is reality confined into that portal of space being opened as a result of the bang

2007-02-10 01:13:12 · 16 answers · asked by Redmonk 6 in Astronomy & Space

2007-02-10 01:08:54 · 2 answers · asked by zack443 1 in Engineering

Am I correct in theorizing that if its instantaneous then you just moved information faster than the speed of light? Does the length of the string really matter?

2007-02-10 01:08:01 · 7 answers · asked by bobdubay 2 in Physics

a) (x-2)² =9

b) 2(x + 1)(3-x)=0

2007-02-10 01:05:52 · 8 answers · asked by need_need 1 in Mathematics

i.e you cant see your face (except the tip of your nose, and some of your bottom lip) you cant see your neck, top of your back shoulders etc

2007-02-10 01:05:03 · 4 answers · asked by Anonymous in Biology

2007-02-10 00:57:27 · 29 answers · asked by Limor C 1 in Geography

2007-02-10 00:57:02 · 5 answers · asked by Anonymous in Chemistry

TRUE OR FALSE?

2007-02-10 00:50:33 · 4 answers · asked by graphicer89 2 in Biology

2007-02-10 00:49:06 · 14 answers · asked by ? 1 in Botany

prove that if a|b then a^2 | b^2

a and b are integers

2007-02-10 00:48:53 · 3 answers · asked by Anonymous in Mathematics

What is the force behind this? Why havn't Humans devloped this?

2007-02-10 00:47:05 · 5 answers · asked by Balance 2 in Zoology

2007-02-10 00:45:31 · 9 answers · asked by Anonymous in Physics