Science & Mathematics - 19 January 2007

The minute hand of the tower clock is 8.0 feet long. Assuming the hand moves at a constant angular velocity, find the speed of the tip of the hand in inches/mins. Do the same for an hour hand of 6.00 feet?

Answer 3.2 pi in/min

Equations to use?

2007-01-19 07:28:11 · 1 answers · asked by Anonymous in Mathematics

I use to work with a man who use to work for his fathers farm.....I asked my mate...."Why do some bulls have rings on their noses. He said that he was'nt sure. I said to him is it because to stop the bull for eating the grass too short....He said no. I said is it to lead the bull from place to place...He said no.....Well I dont know!!.....I think that they know about land farming more than they do about animal farming.

2007-01-19 07:26:23 · 13 answers · asked by Anonymous in Zoology

What if A is a subset of B and B is a proper subset of C? What can we conclude then

2007-01-19 07:24:01 · 3 answers · asked by Anonymous in Mathematics

In the decomposition equation above, how many grams of oxygen is made when 15.0 grams of H2O2 decomposes?
canyou please help?

2007-01-19 07:23:13 · 2 answers · asked by princess 1 in Chemistry

I have to find the altitude of a triangle With (X) being the variable that represents the altitude of the triangle and solving for (X) I need to express my answer in both "simplified radical" and "decimal form"

The sides of the triangle are 13, 13, and 10

The problem is I dont know how to do it !! Please help !

2007-01-19 07:22:32 · 5 answers · asked by CookFrNW 3 in Mathematics

integral=S

evaluate

S{(2x^3+3x^2-3)
/(2x^2-x-1)}dx

integrate the function two x
cubed plus three x squared
minus three,divided by
two x squared minus x minus
one?

2007-01-19 07:22:02 · 3 answers · asked by Anonymous in Mathematics

2007-01-19 07:20:57 · 18 answers · asked by smarty 1 in Astronomy & Space

Find the equation of the line that passes through the point (4, 14) and is perpendicular to

y = 4x + 6

2007-01-19 07:20:26 · 6 answers · asked by Bill Hart Electric 3 in Mathematics

this for math and I need some help please as quick as you can!

2007-01-19 07:19:56 · 16 answers · asked by mia 1 in Mathematics

in other words what is the sum you obtain in the following case
1+2+3.........+36=

2007-01-19 07:17:54 · 8 answers · asked by Future doctor! 1 in Mathematics

2007-01-19 07:17:35 · 16 answers · asked by patsman0005 1 in Weather

i am reli stuck!!!

nd need help QUICK!!!
x x x

2007-01-19 07:15:32 · 4 answers · asked by i-duno bout-much-stuf!-xcept-dis 2 in Chemistry

i.e. rational, irrational, integer, or a whole number

1) 9/10
2) -4
3) 18
4) 0.122333...

2007-01-19 07:15:05 · 7 answers · asked by Red 1 in Mathematics

2007-01-19 07:12:28 · 8 answers · asked by yvette b 1 in Weather

2007-01-19 07:11:03 · 8 answers · asked by spit on it 1 in Weather

How do you explain crackling sounds in the hair and a feeling when it is combed as if there is electricity? How do you explain an electricity like wave shock radiating from the shoulder down the hand to the fingertip? Is this related to synapses or electrons jumping from one nerve to the next? What is happening? And if there is electricity, how much is normal?

2007-01-19 07:10:14 · 4 answers · asked by Aoiffe337 3 in Biology

simplify these equations.


1. 2y/y^2- 25 - y/ y-5

2. 2n/ n^3 - 5n^2 + 2/ n^2 +5n

2007-01-19 07:07:45 · 7 answers · asked by Anonymous in Mathematics

The earth has a 4000-mile radius and rotates one revolution every 24 hours. What is the linear speed of a point on the equator, in mph?

answer: 1047 mph

2007-01-19 07:07:02 · 2 answers · asked by Anonymous in Mathematics

tough one! who can get it!

2007-01-19 07:06:38 · 14 answers · asked by Future doctor! 1 in Mathematics

britain may need more boats to stay afloat

2007-01-19 07:02:43 · 7 answers · asked by raybbies 5 in Earth Sciences & Geology

2007-01-19 07:01:54 · 6 answers · asked by Random111 1 in Chemistry

2007-01-19 07:00:56 · 7 answers · asked by Nicky 2 in Mathematics

Heard this the other day and is quite scary, would that mean tide changes will occur and also that maybe the pull of the moon will halt the tide process so the seas will become stagnant???

2007-01-19 07:00:25 · 6 answers · asked by Anonymous in Physics

If the person drank the water or ate the food? (The aluminum sauce pan has a dark ring inside where, apparently, the minerals in the water reacted with the aluminum in the sauce pan.)

2007-01-19 07:00:07 · 4 answers · asked by Shaggy 3 in Chemistry

2007-01-19 06:58:49 · 7 answers · asked by webelieve04 2 in Mathematics

The speed of an object and the direction in which it moves constitute a vector quantity known as the velocity. An ostrich is running at a speed of 25.6 m/s in a direction of 80° north of west. Please explain how you get the answer.

(a) What is the magnitude of the ostrich's velocity component that is directed due north? (answer in m/s)

(b) What is the magnitude of the ostrich's velocity component that is directed due west? (answer in m/s)

2007-01-19 06:58:46 · 3 answers · asked by mariah3785 1 in Physics

2007-01-19 06:58:36 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-19 06:58:11 · 14 answers · asked by Anonymous in Earth Sciences & Geology

How can I determine the % of alcohol in a distillate with a density of 0.923 g/mL and the following table
Density Percent
0.954 30%
0.935 40%
0.914 50%
0.891 60%
0.868 70%
0.844 80%

2007-01-19 06:57:53 · 3 answers · asked by Cin 1 in Chemistry

2934116eughe erbeerge

dfyheb hen eheergve
mnrbre nergr gereerg

2007-01-19 06:57:39 · 6 answers · asked by cecil c 1 in Zoology