Science & Mathematics - 19 July 2007

2007-07-19 23:58:29 · 53 answers · asked by Anonymous in Geography

2007-07-19 23:54:27 · 3 answers · asked by Vienna 3 in Physics

Hi all

Can any1 help. Does any1 know how long you have to stay in hospital after having laparoscopic surgery for Gallstones and how long you have to wait to travel abroad

Thank you.

2007-07-19 23:47:47 · 16 answers · asked by Anonymous in Medicine

a Ton of bricks, a Ton of feathers or a Ton of water

2007-07-19 23:45:10 · 26 answers · asked by hannah_detain 2 in Physics

Write sin(sin^-1 (x) + cos^-1 (y)) as an algebraic expression containing x and y (that is, without any trig functions).

HINT GIVEN IN BOOK:

Think of inverse trig functions.

Also: What is the easiest way or method for graphing inverse trig functions?

2007-07-19 23:42:11 · 4 answers · asked by journey 1 in Mathematics

2007-07-19 23:36:19 · 13 answers · asked by bob m 3 in Physics

Find the exact value of the inverse trig functions.

(1) csc[cos^1 (-(sqrt{3}/2)]

(2) tan[sin^1(-(1/2)]

2007-07-19 23:35:11 · 4 answers · asked by journey 1 in Mathematics

2007-07-19 23:34:39 · 3 answers · asked by poonspoonspoony 1 in Weather

Find the exact value of the inverse trig functions.

(1) cos^-1(sin(7pi/2))

(2) tan^1(tan(2pi/3))

2007-07-19 23:31:56 · 2 answers · asked by journey 1 in Mathematics

2007-07-19 23:30:00 · 6 answers · asked by Anonymous in Chemistry

Find the exact value of the inverse trig function.

sin(cos^-1 (1/2))

2007-07-19 23:28:56 · 5 answers · asked by journey 1 in Mathematics

plants and its survival

2007-07-19 23:24:39 · 4 answers · asked by kalki 1 in Botany

Prove the two identities below.

I found these two to be very hard.

(1) sin(x)(sin3(x) + sin5(x)) = cos(x)(cos(cos3(x) - cos5(x))

(2) (cos(a) + cos(b))/(cos(a) - cos(b)) = - (cot(a + b)/2)(cot(a - b)/2)

2007-07-19 23:23:41 · 3 answers · asked by Sharkman 1 in Mathematics

(cos(x) - cos5(x))/(sin(x) + sin5(x)) = tan2(x)

How do I handle trig identities that use numbers greater than 2? The above question has a 5? See my point?

2007-07-19 23:18:58 · 2 answers · asked by Sharkman 1 in Mathematics

Please show steps of getting x in the equation
(x-1)/2=8

2007-07-19 23:16:28 · 14 answers · asked by pgath 1 in Mathematics

2007-07-19 23:12:57 · 1 answers · asked by Rohit J 1 in Botany

2007-07-19 23:12:30 · 2 answers · asked by Anonymous in Astronomy & Space

How do I prove or establish trig identities with exponents higher than 2?

SAMPLES:

(1) tan3(x) = (3tan(x) - tan^3 (x))/(1 - 3(tan^2 (x))

(2) tan4(x) = (4tan(x) - tan^4 (x))/(1 - 4tan^3 (x))

2007-07-19 23:12:08 · 2 answers · asked by Sharkman 1 in Mathematics

Strange question, but I have a small microwave craft kiln which is designed for a 600w microwave.
The instructions say, if using a higher power microwave to turn it down. I need to know which setting to put it on - I have in the following order :
low
defrost
medium low
medium
medium high
high

Does anyone know which setting would be nearest to 600w on an 800w microwave?

I can't contact the company as they are in Japan and I got the kiln second hand. Thanks in advance :-)

2007-07-19 23:07:52 · 3 answers · asked by Molly 2 in Engineering

w=13
H=10.5
L=14

2007-07-19 22:55:01 · 4 answers · asked by darz_morre18 1 in Mathematics

So, I’m a spiritual person but I’m not particularly religious. I believe in evolution and science and all of that. So, the big bang theory implies that ‘the universe began from a singular state of infinite density’. Where did this singular state guy come from in the first place?

Just wondering if theres like an explanation for it or anything.

2007-07-19 22:50:54 · 11 answers · asked by k 2 in Astronomy & Space

This may sound like a dumb quetion but anyways I just read about the brown recluse spider and where it lives in the mideastern and south west but still I wonder if it migrate up all the way here to Maine Im afraid to go near my bed to sleep now and I also have aracnaphobia very severly am I paranoid just becuse I read about the spider what are the chances if it migrating all the way up here

2007-07-19 22:40:49 · 5 answers · asked by angeleyes4us200 1 in Zoology

I know that Bromides are excreted through the skin as well as urinary, and i wanted to know if Iodides/Iodine are excreted the same way as they are both halides. Is this the same as in felines?

2007-07-19 22:21:24 · 2 answers · asked by Anonymous in Biology

How moving charges produce Magnetic Field? What is the physics behind that?

2007-07-19 22:19:52 · 8 answers · asked by kumar 1 in Physics

2007-07-19 22:16:49 · 8 answers · asked by Anonymous in Astronomy & Space

Also how do you tell which ones are and which aren't?

2007-07-19 22:12:10 · 2 answers · asked by Anonymous in Chemistry

2007-07-19 22:10:16 · 8 answers · asked by Anonymous in Astronomy & Space

2007-07-19 21:59:04 · 22 answers · asked by Fauna 5 in Agriculture

How much work is done by the barrier on the cart and by the cart on the barrier if a cart with spring plunger runs into a fixed barrier. The initial velocity, final velocity and mass of the cart are given.

2007-07-19 21:52:00 · 1 answers · asked by Physicspsycho 1 in Physics

say you have got a semi circle, and have calulated where the center of gravity is. i now want to find 3 points where it can be lifted, keeping the semi cirlce flat. how do i find these?

2007-07-19 21:34:58 · 3 answers · asked by mr_o_uk 2 in Engineering