Science & Mathematics - 9 September 2006

(p/1-1/7) (p/1+1/7)
show work

2006-09-09 11:59:28 · 7 answers · asked by Kevin 5 in Mathematics

I would like a couple examples.

2006-09-09 11:57:54 · 7 answers · asked by Darci W 2 in Other - Science

This is some UNGRADED homework that I cannot solve (the answers are available to us through the Math dept. website, but I don't understand at all how to get this answer).

The question is:

Write an equation for the plane which contains the x-axis and the point (0,1,2).

Apparently, the answer is -2y+z = 0 but I don't even know where to begin. Somebody asked the professor how to solve it, but he wasn't very helpful. He's one of the genius-types that isn't the best at teaching.

In advance, THANK YOU so much!

2006-09-09 11:57:41 · 5 answers · asked by 99 ways to smile 4 in Mathematics

2006-09-09 11:56:38 · 6 answers · asked by Sexy2010 2 in Astronomy & Space

Can you explain this problem to me????

A plane travels on a heading of r.o for a distance of 3.00x10^2 km. How far north and how far east does the plane travel????


thank you also.... do you have any sites that will help people who don't understand physics?

2006-09-09 11:52:35 · 3 answers · asked by Twilight Is Love 1 in Physics

2006-09-09 11:44:39 · 5 answers · asked by not very smart algebra dude. 2 in Mathematics

Ok, I'm not here so that people can do my homework; I just need some help so please don't say I just want answers. I'm having trouble with this question on Relative velocity...it's an easy question but something is throwing me off:

An airplane wants to travel to Town A which is 650 km north of the airport. The wind velocity 125 km/h west. If the plane can fly at a velocity of 475 km/h relative to the air, determine:
a) the velocity of the plane relative to the ground and the heading (direction) that the plane must travel.
b) the time that the plane is in the air.
c) how far off course the plane would be if the pilot flew the plane ignoring the wind.

How can I even draw the two vectors..I understand that I can draw a line going 125 km/h west but the plane relative to the air 475 km/h doesn't even give the direction...can someone please help me solve it

2006-09-09 11:43:55 · 5 answers · asked by A 2 in Physics

But what if the moon were made of spare ribs. Would you eat it then?

2006-09-09 11:42:51 · 13 answers · asked by Good Vibrations 2 in Astronomy & Space

We have a coke machine at work with the cans on plastic track, which opens, and drops the can about 3-4ft to the trough at the bottom. I've never had one erupt when I've opened it.
Is it because they're chilled? Is there padding at the bottom?

2006-09-09 11:40:49 · 6 answers · asked by onemanrace 1 in Other - Science

i write with my RIGHT hand and draw with it as well.. something with me left depending on what kind of look im after.. how can i learn write with my Left hand and why do most people only use one hand?

2006-09-09 11:39:48 · 9 answers · asked by Taylor 3 in Biology

I have a 4x4 matrix which has been reduced by elementary operations and started the cofactor expansion to get 2 3x3 matrixs (the other 2 3x3 are multiplied by 0).

My question is can I continue to use elementary operations to reduce the 3x3 matrices and then apply the cofactor expansion again to receive 2 2x2s?

i.e, as per where I'm at with my problem, does | D | = a11 *A11 + a31*A31= a11*b11*B11+a11*b31*B31?

I haven't been able to find any information online anywhere so if you have a source, please link it.

Thank you.

2006-09-09 11:39:00 · 3 answers · asked by trivialstein 2 in Mathematics

.....which will hit the ground first?

2006-09-09 11:31:01 · 40 answers · asked by carl_marriott 1 in Physics

explain how u got ur answer
10 2/7 * 3 3/5

2006-09-09 11:30:21 · 7 answers · asked by Kevin 5 in Mathematics

I heard this from a friend of mine, that in vacuum when light hits the mirror it doesn't bounce back -it acts like coal or anything black in air. But i don't really believe this, and am too lazy to calculate the effects, so i just ask you guys. If anyone knows somehing WORTHY OF TELLING about this, then please, do so.

2006-09-09 11:26:20 · 4 answers · asked by Anonymous in Physics

2006-09-09 11:20:23 · 5 answers · asked by yahoo answers son of a gun 1 in Medicine

How does illegal drug use effect brain cells in a way that legal drugs do not?
Is there any proof of the "kills braincells" mantra?

2006-09-09 11:14:23 · 15 answers · asked by Anonymous in Biology

with roads, parking lots, etc....

2006-09-09 11:14:05 · 4 answers · asked by perk 2 in Engineering

What's the chemicle name?

2006-09-09 11:13:33 · 7 answers · asked by RED MIST! 5 in Chemistry

2006-09-09 11:11:45 · 11 answers · asked by MamaBear 6 in Astronomy & Space

2006-09-09 11:09:59 · 7 answers · asked by Anonymous in Weather

The peacocks and peahens belong to their neighbour and fly over an 8 foot wall to get into the garden,where they peck at certain plants .Father ,aged 80,is furious if he sees them in the garden and will chase them out.But they come back,sooner or later.

2006-09-09 11:05:36 · 4 answers · asked by Anonymous in Zoology

2006-09-09 11:05:29 · 5 answers · asked by hottie 1 in Biology

2006-09-09 11:05:14 · 15 answers · asked by imagirl 1 in Physics

I have a Galileo FS-80 telescope, can you tell me what you can or can't see with it? I've recently see a very small oval/circle type figure that if rainbow colored. Can you tell me what it is?
Thanks : )

2006-09-09 11:03:11 · 4 answers · asked by gabi 2 in Astronomy & Space

2006-09-09 11:03:09 · 4 answers · asked by snowhorse@sbcglobal.net 2 in Earth Sciences & Geology

what were discovered before the telephone was invented that helped develop the invention of the telephone?
is the foundation of the electromagnetic counted?
i tried to make my question clear^^"
thank u in advance!!

2006-09-09 11:00:08 · 2 answers · asked by Ganbatteru 3 in Engineering

when waking up you are unable to move or speak and feel paralised I feel this often and wondered why its very frightening

2006-09-09 10:59:59 · 21 answers · asked by LMo 1 in Other - Science

2006-09-09 10:58:31 · 10 answers · asked by ladybuglucyo 1 in Zoology

2006-09-09 10:53:46 · 6 answers · asked by Anonymous in Mathematics

2006-09-09 10:52:00 · 6 answers · asked by jm_chppll 1 in Chemistry