Science & Mathematics - 12 October 2007

finding a relationship that will allow you to go from fahrenheit measurement to a celsius measurement in two ways by graphing the data or by algebracially

2007-10-12 08:40:46 · 4 answers · asked by ? 1 in Mathematics

2007-10-12 08:38:57 · 7 answers · asked by Anonymous in Engineering

A particle travels between two parallel vertical walls separated by 11m. It moves toward the opposing wall at a constant rate of 6.3m/s. It hits the wall at the same height and the acceleration of gravity is 9.8m/s^2. How would I be able to find the speed of the particle when it hits the opposing wall and then how can I find at what angle with the wall will the particle strike?

2007-10-12 08:33:57 · 2 answers · asked by kira 2 in Physics

Does anyone know if a master list of FDA approved building materials exists somewhere? Specifically I am trying to find out if grade 202 stainless steel is FDA approved.

2007-10-12 08:29:22 · 5 answers · asked by aduerwachter 1 in Engineering

2007-10-12 08:28:41 · 7 answers · asked by Anonymous in Engineering

2007-10-12 08:25:38 · 6 answers · asked by Anonymous in Botany

find y' of y= 2x sin x - x^2 tan x

2007-10-12 08:25:28 · 4 answers · asked by jewel7962002 1 in Mathematics

I can tell by the other answerers' responses that I am not alone with my frustration.
Maybe we just shouldn't answer them anymore... ?
Just an idea...

2007-10-12 08:25:14 · 15 answers · asked by Bobby 6 in Astronomy & Space

2x+2y>=20
8x+5y<=40
x>=0,y>=0

The linear programming problem has
a unique solution, multiple solutions, unbounded solution, no feasible solution?

2007-10-12 08:23:04 · 2 answers · asked by B L 1 in Mathematics

2007-10-12 08:19:36 · 3 answers · asked by marcus b 1 in Physics

The Gold and Platinum recovery process

2007-10-12 08:18:27 · 5 answers · asked by hoody 1 in Engineering

2007-10-12 08:17:03 · 16 answers · asked by Anonymous in Astronomy & Space

it was introduced by franz anton mesmer

2007-10-12 08:15:38 · 2 answers · asked by Anonymous in Physics

2007-10-12 08:09:15 · 5 answers · asked by shortboy130 1 in Geography

Ever seen the show Ghost hunters on Sci Fi? Do you think they stage some of the sound evidence/ video evidence? Is it real? Or are they just not careful when they are recording this stuff.

2007-10-12 08:08:47 · 21 answers · asked by Anonymous in Paranormal Phenomena

i am supposed to solve these but every time i do i get a really weird answer..please help me...

1st problem- 12x + 2 ≤ 14

2nd problem- 3/8 ≤ -1/6x

2007-10-12 08:06:43 · 9 answers · asked by just me... 1 in Mathematics

Someone was telling me that you can actually see IR lights with your eyes if you are in a dark enough place (with the naked eye). Is this true? If so, can you back up the facts?

2007-10-12 08:06:17 · 8 answers · asked by jorge d 1 in Physics

A. a skin cell
B. an egg cell
C. a sperm cell
D. All of the above are diploid.

2007-10-12 08:05:55 · 4 answers · asked by Anonymous in Biology

2007-10-12 08:01:20 · 9 answers · asked by Anonymous in Astronomy & Space

this is for my school project

2007-10-12 07:58:44 · 3 answers · asked by phil 2 in Engineering

2007-10-12 07:58:11 · 27 answers · asked by The Doctor 1 in Paranormal Phenomena

Okay so there are two blocks (m1 = 1kg & m2 = .5kg), lying together on a frictionless surface. A constant force of .10N is applied to block m1, pushing both blocks across the table to the right 3.33m in 10 seconds. Then a force of -.10N pushes on block m2, pushing both blocks to the left -3.33 meters in 10 seconds.
What is the acceleration magnitude of the 2 blocks?
In the first scenario, 2 horizontal forces act on m1: the external force and the contact force (P21) acting to the left. Newton's law gives: F - P21 = m1a. The applied force must make both blocks accelerate. Solve the expression for the contact force acting on m1:
N
On block m2, only the contact force (P12) from m1 is acting on it. Thus P12 = m2a. Solve this for the contact force acting on m2: N.
Now reverse the scenario, with the force acting from the left. Solve for the contact force P12, and the contact force acting on m1.

Thanks for the help!

2007-10-12 07:56:28 · 1 answers · asked by Bill 1 in Physics

I dont mean mars or any other planets but worlds that people cant acess.what im saying is that i believe but do you believe in diffrent worlds.but did you ever make your own world in the process?

2007-10-12 07:56:23 · 5 answers · asked by Anonymous in Astronomy & Space

2007-10-12 07:55:41 · 10 answers · asked by The Doctor 1 in Astronomy & Space

A. Nothing happens

B. The cell undergoes meiosis, in order to produce 4 new cells.

C. A nearby cell is signalled (told) to divide in order to fill the empty space where the now dead cell used to be.

D. None of the above

2007-10-12 07:55:35 · 3 answers · asked by Anonymous in Biology

2007-10-12 07:51:09 · 4 answers · asked by ari-pup 7 in Other - Alternative

Please help me.

2007-10-12 07:50:12 · 1 answers · asked by Anonymous in Chemistry

I am picturing *one location on the x-axis, *one location on y-axis, and *one location on the z-axis. I visuallize these plotting one single point in three-dimensional space, similar to a standar x-y graph. How is this *point supposed to represent a vector????? Does the vector start from the origin and go through this point?

2007-10-12 07:48:25 · 7 answers · asked by RogerDodger 1 in Physics

Single water molecules can dissociate into hydrogen and hydroxide ions by themselves TRUE OR FALSE

WHY??

I think that the answer is FALSE. It is the "by themselves" that is throwing me off!

2007-10-12 07:46:28 · 4 answers · asked by LJC 2 in Chemistry

I know that the mass shot from the cannon is 0.787 kg and the end of the cannon's barrel is at 6.9m and the initial velocity vi of the projectile has a horizontal component of 4.6m/s. The projectile rises to a height of delta y and strikes the ground at a horizontal distance delta x past the end of the cannon's barrel, and the acceleration of gravity is 9.8m/s^2. I have to find out the time it takes for the projectile to reach its maximum height, so if anyone could explain what I could do or if there are equations I could use to find the maximum height that would be helpful and appreciated.

2007-10-12 07:42:45 · 3 answers · asked by <3DA<3 1 in Physics