Science & Mathematics - 12 October 2006

2006-10-12 15:16:56 · 15 answers · asked by kingsnnines 1 in Chemistry

however i dont have a regular wake up time i mean its not biological time or something, i usually set the alarm to different times, does the cellphone affect me somehow? magnetism maybe?

2006-10-12 15:15:52 · 14 answers · asked by ijustwonder 1 in Other - Science

It's not even mid-October and we had snow!! Does this have to do with global warming?

2006-10-12 15:15:09 · 8 answers · asked by R T 1 in Weather

The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 51700 N. The lift force L generated by the rotating blade makes an angle of 21.0° with respect to the vertical.

(a) What is the magnitude of the lift force?
(b) Determine the magnitude of the air resistance R that opposes the motion.

2006-10-12 15:13:58 · 3 answers · asked by Anna G 1 in Physics

Is it Ceres or Xena

2006-10-12 15:13:46 · 5 answers · asked by Mz.SouljaGurl 1 in Astronomy & Space

2006-10-12 15:11:50 · 9 answers · asked by Chris M 2 in Other - Science

2006-10-12 15:09:42 · 16 answers · asked by nebraskafever 1 in Geography

Why the leter "Y" represent de vertical axe and the leter "X" represent the horizontal axe?

2006-10-12 15:09:36 · 10 answers · asked by Anonymous in Mathematics

Suppose a quadratic function f(x) = x^2 + bx + c has zeros p and q.

a) Let k be an integer. Using only b, c, and k (and x), write a new qudratic function whose zeros are p+k and q+k.

b) Repeat part (a), but write a new function whose zeros are p-k and q-k.






Let k represent a positive integer, so that 2k represents a positive even integer, and suppose we want to answer the following question: How can 2k be given as a sum of two numbers x a nd y so that xy is as large as possible?

a) Answer the question specifically for 2k=10 by trying all possible pairs of integers whose sum is 10. Based on your answer, make a conjecture for the general case.

b. Prove the conjecture you made in part (a) by writing a quadratic function in factored form.

2006-10-12 15:07:17 · 4 answers · asked by wizard94539 2 in Mathematics

2006-10-12 15:06:37 · 17 answers · asked by Anonymous in Medicine

....at some point in their lives. Read an astonishing report that 1 in 1000 yanks claim to of been abducted by Aliens, and returned to earth unharmed....yeah right!!!

2006-10-12 15:05:59 · 18 answers · asked by Anonymous in Astronomy & Space

include picture, elements, bonds, on a key

2006-10-12 15:05:04 · 5 answers · asked by joe 1 in Chemistry

2006-10-12 15:03:38 · 6 answers · asked by drama_queen1312004 2 in Chemistry

example for some product or anything else in real life..something that provides support and protection like the cell wall

2006-10-12 15:01:36 · 5 answers · asked by makaila 1 in Biology

even though a hydrogen atom only has one electron?

2006-10-12 15:00:11 · 2 answers · asked by amanda 1 in Chemistry

salmon spawn. how do they find their home river?

2006-10-12 14:58:21 · 5 answers · asked by Elizabeth G 1 in Biology

square. What was the original size of the lot? Let X= the length of 1 original side

2006-10-12 14:57:33 · 7 answers · asked by earlene w 1 in Mathematics

2006-10-12 14:57:07 · 3 answers · asked by li s 1 in Biology

The 10th person (by timestamp) with the correct answer gets the 10 points.

2006-10-12 14:54:47 · 19 answers · asked by GeneL 7 in Geography

Sometimes caged animals pace back and forth. it is because they are caged and not free, this is a fact. I am curious...is there a name for this behavior?

2006-10-12 14:52:17 · 9 answers · asked by da_cracken 1 in Zoology

such as in medicines, certain foods, cleaning products, etc

2006-10-12 14:50:45 · 5 answers · asked by b5luvya 1 in Chemistry

I am fairly smart, I have the highest grade in science and health, and am at the top of the class in everything else, I'm just always getting B's in math. Now, I don't want to see modest, but I'm sure there are other ppl out there who consider a B bad, especially when you get A's in everything else. I currently take Integrated Mathematics III and am in 10th grade. It is sorta a combination between algebra and geometry. My question is: What can I do to become better in math?

2006-10-12 14:48:31 · 13 answers · asked by Fanuilos 2 in Mathematics

and what is the symbol for a neon atom that has no charge and a atomic mass of 20?

2006-10-12 14:46:12 · 3 answers · asked by BlackSun 2 in Biology

rationalize the denominator.

1) 18√24 / -3√8

2) -24√45 / 72√20

2006-10-12 14:44:21 · 5 answers · asked by Sharon 1 in Mathematics

A billiard ball moving at a speed of 2.2 m/s strikes an identical stationary ball with a glancing blow. After the collision, one ball is found to be moving at a speed of 1.1 m/s in a direction making a 60 degree angle with the original line of motion.

Find the velocity of the other ball, and explain how you got your answer.

2006-10-12 14:44:00 · 1 answers · asked by Anonymous in Physics

About 3 years ago my husband and I were driving down the interstate and saw two complete rainbows in the sky. It was so cool we had to pull over and just stare. Has anyone else ever seen this? Do you know what would cause two to appear at the same time?

2006-10-12 14:42:21 · 11 answers · asked by Suzi M 1 in Other - Science

2006-10-12 14:40:56 · 2 answers · asked by XXDaPrincessXXPJ 1 in Other - Science

2006-10-12 14:39:03 · 6 answers · asked by superrocketnerd 1 in Engineering

2006-10-12 14:37:48 · 7 answers · asked by Anonymous in Mathematics

A force F applied to an object of mass m1 produces an acceleration of 3.10 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.20 m/s2. If m1 and m2 are combined, what is their acceleration under the action of the force F.

2006-10-12 14:34:14 · 4 answers · asked by Jayu P 1 in Physics