Science & Mathematics - 28 January 2007

WHATS THE DIFFERENCE BETWEEN THEM?!

2007-01-28 05:56:48 · 5 answers · asked by Anonymous in Chemistry

180 degrees
360 degrees
460 degrees
15 degrees
720 degrees

2. The angle the hour hand traveled through?

2007-01-28 05:55:45 · 10 answers · asked by shariff B 1 in Weather

2007-01-28 05:53:55 · 13 answers · asked by twumasi t 2 in Biology

do stress cause alot?

2007-01-28 05:52:42 · 6 answers · asked by chantel w 1 in Medicine

i m not trying to get help with my math homework here but i m holding a small math contest here. the reward is 10 points for the correct answers but all the answers for the questions must me correct. so here it is:


1. For what value of n does (2^2007 - 2^2006)(2^1997 - 2^1996) = 2^n?


2. For any integer k>1, k! is the product of every integer from 1 to k. Thus, 3! = 1 x 2 x 3. Write the only integer n > 32 that satisfies
(n-23)!(23)! = (n-32)!(32)


3. If r1, r2, r3, r4 are the roots of x^4 - 4x^2 + 2 = 0, what is the value of (1 + r2)(1 + r2)(1 + r3)(1 + r4)?


Thats it! Only 3 questions and the first person to answer these questions correctly would be the winner. Good Luck!

2007-01-28 05:52:25 · 2 answers · asked by Anonymous in Mathematics

250 Square feet
316 Square feet
216 Square feet
300 Square feet
600 Square feet

2. How many square feet are in the garden?

2007-01-28 05:52:13 · 3 answers · asked by shariff B 1 in Weather

I need help understanding how to work these types of problems out. Can someone help?

2007-01-28 05:51:44 · 4 answers · asked by flower67 1 in Physics

QUESTION CONT. from A to N

2007-01-28 05:50:46 · 3 answers · asked by Anonymous in Mathematics

Given: triangle PQR aith altitude QA, angle bisector QB, and median QM, with B between A and M.

Prove: QA < QB< QM
(triangle drawn is an acute triangle) sorry I cant draw the picture

Q on top
P A B M R across the bottom (longest end on the right)
SHOULD BE 10 STEPS AND I AM SO LOST

2007-01-28 05:50:34 · 1 answers · asked by hoopmaster1 1 in Mathematics

like a picture or something like that

2007-01-28 05:50:01 · 3 answers · asked by Anonymous in Physics

A car moves along an x axis through a distance of 980 m, starting at rest (at x = 0) and ending at rest (at x = 980 m). Through the first 1/4 of that distance, its acceleration is +5.25 m/s2. Through the next 3/4 of that distance, its acceleration is -1.75 m/s2. What are (a) its travel time through the 980 m and (b) its maximum speed?

2007-01-28 05:49:48 · 1 answers · asked by Anonymous in Physics

A world's land speed record was set by Colonel John P. Stapp when in March 1954 he rode a rocket-propelled sled that moved along a track at 1020 km/h. He and the sled were brought to a stop in 1.4 s. In g units, what magnitude acceleration did he experience while stopping?

2007-01-28 05:48:49 · 1 answers · asked by Anonymous in Physics

On a dry road, a car with good tires may be able to brake with a constant deceleration of 3.65 m/s2. (a) How long does such a car, initially traveling at 26.3 m/s, take to stop? (b) How far does it travel in this time?

2007-01-28 05:47:48 · 4 answers · asked by Anonymous in Physics

Oh no, please help... Ive just been bitten by a Cobra and im told that there bite is fatal.. How long have I left before I actuall...ll,..lie di.......

2007-01-28 05:46:38 · 8 answers · asked by pop c 2 in Zoology

2007-01-28 05:46:08 · 2 answers · asked by jeet 1 in Mathematics

2007-01-28 05:44:21 · 5 answers · asked by Anonymous in Astronomy & Space

are 8 inches, 4 inches, and 2 inches. The numbe of bricks in the bin is

648
1300
1296
932
64

2 One brick equals how many cubic inches?

2007-01-28 05:43:03 · 6 answers · asked by shariff B 1 in Mathematics

2007-01-28 05:41:27 · 22 answers · asked by Will 5 in Weather

how is Neodymium obtained and purified for common usage?

Thanks :)

2007-01-28 05:40:10 · 1 answers · asked by luckyplaya23 2 in Chemistry

State the importance of valence electrons in the organization of the periodic table.

2007-01-28 05:39:30 · 4 answers · asked by Anonymous in Chemistry

I need help with this tough truth table. I cant find a good constructor they are all wrong. Thank you for any help you can give.

2007-01-28 05:39:06 · 2 answers · asked by Anonymous in Mathematics

I have yet to take physics in highschool (will next year...) but a good friend of mine told me that the Big Bang Theory defies the laws of physics, such as energy/ matter cannot be created or destroyed so how would the BBT be possible, also something about how everything tends to dissorder, so why would the world create an ordered world, then go back to tending to dissorder??? Just wondering if this is true, and what everyone else thinks...

2007-01-28 05:38:45 · 5 answers · asked by werdsoccer11 2 in Physics

I am trying to calculate the area of lots (Real Estate). Drawings only show the four sides with no angles. Many are not parallelograms. Is there a way to calculate the area from only the lengths of the four sides? Inspection and common sense would say not, but one of you math geniuses may have an answer...
Thanks.

2007-01-28 05:37:34 · 3 answers · asked by flyfisher 1 in Mathematics

2007-01-28 05:37:30 · 3 answers · asked by M. 1 in Weather

2007-01-28 05:36:15 · 5 answers · asked by meme46 1 in Zoology

Charles has 400 bushels of potatoes that he can now sell for $3.20 per bushel. For every week he waits, the price per bushel will drop by $0.10 but he will harvest 20 more bushels. How many weeks should he wait in order to maximize his income??

math work would be greatly appreciated. i have absolutely no idea where even to start on this problem! thanks!

2007-01-28 05:35:03 · 8 answers · asked by bluenecklace 2 in Mathematics

crushed ice melts faster than cubed ice because?
a. there is more surface area of the crushed ice in contact with the air
b. there is less surface area of the crushed ice in contact with the air
c. the crushed ice has a higher temperature
d. the crushed ice has a lower temperature

2007-01-28 05:33:32 · 10 answers · asked by tico 1 in Chemistry

2007-01-28 05:32:27 · 1 answers · asked by Anonymous in Physics

2007-01-28 05:30:59 · 16 answers · asked by tripathi_jagdish 1 in Biology

2007-01-28 05:29:56 · 5 answers · asked by amna_makky 1 in Biology