Science & Mathematics - 27 November 2006

2006-11-27 17:11:36 · 10 answers · asked by jun s. 1 in Engineering

2006-11-27 17:10:54 · 13 answers · asked by gun_blade03 2 in Parapsychology

2006-11-27 17:10:20 · 19 answers · asked by Anonymous in Physics

besides hot water?

2006-11-27 17:08:43 · 16 answers · asked by blingding 5 in Chemistry

2006-11-27 17:06:39 · 4 answers · asked by Srinivasan N 1 in Chemistry

2006-11-27 17:06:28 · 16 answers · asked by In Honor of Moja 4 in Astronomy & Space

coz they say matter is anything that occupies space and has mass. how about a vacuum?

2006-11-27 17:05:01 · 9 answers · asked by angels_breathe15 1 in Physics

2006-11-27 17:03:41 · 5 answers · asked by Srinivasan N 1 in Chemistry

2006-11-27 17:02:13 · 5 answers · asked by muffetpaw 1 in Physics

2006-11-27 17:01:37 · 7 answers · asked by muffetpaw 1 in Physics

2006-11-27 17:00:06 · 9 answers · asked by Timothy C 5 in Geography

Comment Critically on the following claims:

(a) an object allways accelerates in the direction of the net force
(b)A lower net force is needed to accelerate an object from rest to 10m/s than is required to accelerate it from rest to 20m/s irrespective of the time take.


Best answer gets 10 Points!!!

2006-11-27 16:58:52 · 6 answers · asked by Brody 3 in Physics

2tan x / 3-2tan^2x =1

2006-11-27 16:57:52 · 6 answers · asked by louie 1 in Mathematics

2006-11-27 16:57:26 · 21 answers · asked by Anonymous in Geography

Use completing the square to show that x-intercepts of y=ax^2+bx+c occurs at x= (negative b plus or minus the square root of b squared minus 4ac) divided by 2a.

I've seen these steps on many differens sites and my question is how did the bx/a between steps 4 and 5 disappear?

1. ax^2 + bx + c = 0
2. x^2 + bx/a + c/a = 0
3. x^2 + bx/a + c/a + b^2/4a^2 = b^2/4a^2
4. x^2 + bx/a + b^2/4a^2 = b^2/4a^2 - c/a
5. (x + b/2a)^2 = b^2/4a^2 - c/a
(x + b/2a)^2 = (b^2 - 4ac)/4a^2
x + b/2a = +-sqrt((b^2 - 4ac)/4a^2)
x + b/2a = +-sqrt(b^2 - 4ac)/2a
x = - b/2a +-sqrt(b^2 - 4ac)/2a
x = (-b +-sqrt(b^2 - 4ac))/2a

2006-11-27 16:57:23 · 7 answers · asked by culture_killer 3 in Mathematics

2006-11-27 16:56:41 · 9 answers · asked by chippitychipmunk 1 in Mathematics

Having a little trouble with this one. Not sure I've done it right, maybe someone can help me out. I would deeply appreciate it.

Evaluate the following integral:
int=integral
int[sin^3xcos^x dx] = ?
also same as int[(sinx)^3(cosx)^4 dx] = ?

Thanks in advance!!

2006-11-27 16:54:42 · 4 answers · asked by mk3oarder 1 in Mathematics

FROM A WIRELESS PATIENT MONITOR INSIDE THE MRI ROOM, HOW CAN I BOOST THE WEEK PATINET MONITOR SIGNAL THAT IS REACHING THE CONTROL ROOM (PLEASE ANSWER IF U HAVE A PROPER ANSWER ) .

2006-11-27 16:54:05 · 1 answers · asked by 007 1 in Engineering

2006-11-27 16:51:47 · 8 answers · asked by muffetpaw 1 in Physics

Need a little nudge here. I cancel out the sixes and then what?

2006-11-27 16:49:26 · 21 answers · asked by JC 1 in Mathematics

8 , 9 ,9,
1 , 5 , 8,
1 , 1 , 1,

2006-11-27 16:49:09 · 7 answers · asked by a r 1 in Mathematics

I need to prepare a flow chart of the ventricle fluid movement from production to drainage..
Please help me here ^_^

2006-11-27 16:46:22 · 1 answers · asked by Ashley 1 in Biology

Comment Critically on the following claims:

(a) an object allways accelerates in the direction of the net force
(b)A lower net force is needed to accelerate an object from rest to 10m/s than is required to accelerate it from rest to 20m/s irrespective of the time take.


Best answer gets 10 Points!!!

2006-11-27 16:43:15 · 6 answers · asked by Brody 3 in Physics

2006-11-27 16:40:30 · 16 answers · asked by Anonymous in Engineering

wat did she work as, and wat were her goals, need for a project

2006-11-27 16:39:59 · 4 answers · asked by Elsa 1 in Physics

2006-11-27 16:37:58 · 6 answers · asked by a r 1 in Mathematics

preventing these channels from opening?

a) block all sodium movement
b) block repolarization
c) prevent the axon from reaching the threshold potential
d) a and b only
e) a, b, and c

2006-11-27 16:37:23 · 2 answers · asked by curious 2 in Biology

The company inspector insists that the balls shipped vary no more than 0.3 sq in of this total. To the nearest hundredth, what is the minimum and the maximum value for the surface area of rubber balls shipped?

Minimum answers:
50.25
49.95
50.55
none

Maximum answers:
50.25
49.95
50.55
none

2006-11-27 16:35:52 · 3 answers · asked by Anonymous in Mathematics

Find absolute extrema of the function g(x) = 2x + 5cosx on the interval [0,2pi]

I was trying to find the critical numbers, and I ended up with sinx = 2/5 and I'm not quite sure what (rational) value of x satisfies that.

I'm trying to find the critical numbers, so I could find the y value at them for g, and compare them to the y values at the endpoints, to find the absolute extrema.

Anyone could tell me what I'm doing wrong? Or what I should be doing next?

(Note: just an answer to the question will be useless to me, I need to understand how to do the question, otherwise I have the answer in the back of my textbook).

Thanks a lot.

2006-11-27 16:35:14 · 3 answers · asked by my nickname 2 in Mathematics

2006-11-27 16:35:02 · 5 answers · asked by mrada6 2 in Physics