Education & Reference - 11 October 2006

i need these papers to practice.

2006-10-11 20:55:15 · 1 answers · asked by Anonymous in Primary & Secondary Education

2006-10-11 20:55:14 · 29 answers · asked by Anonymous in Words & Wordplay

2006-10-11 20:53:24 · 11 answers · asked by Anonymous in Trivia

Physics Phrustration...?
A 67.9kg skier coasts up a snow-covered hill that makes an angle of 27.7o with the horizontal. The initial speed of the skier is 8.54m/s. After coasting a distance of 1.94m up the slope, the speed of the skier is 3.15m/s. Calculate the work done by the kinetic frictional force that acts on the skis.

You are on the right track. Two things remove energy from the skier: frictional force and change in potential energy due to elevation change. The elevation change as you said is ∆h = S*sin(T) where T is the angle of the slope. The energy change from this is m*g*∆h. His starting energy is .5*m*v0^2 where v0 is the starting velocity. The ending energy is .5*m*Vf^2.

The relation is:

end energy - start energy = ∆potential energy + friction energy.

my equation comes out to...

used change PE = mg(hf - hi)
to get 600.07

336.87 - 2476.03 = 600.07 + frictional force

I get -2739 as an answer, but it is still wrong.

2006-10-11 20:42:22 · 1 answers · asked by CarpeDiem22 1 in Homework Help

2006-10-11 20:40:08 · 2 answers · asked by marykt09142 1 in Homework Help

Sometimes she has problems while reading too, esp with 'b' and 'd'.

2006-10-11 20:32:10 · 11 answers · asked by lock j 2 in Preschool

I am graduating high school hi year.
I am good both in english and mathematics..
But i kno Ihave t consider my parents financial status whih is so low.

2006-10-11 20:24:02 · 6 answers · asked by sweet_sugar 1 in Financial Aid

2006-10-11 20:23:01 · 3 answers · asked by NASSIM A 2 in Primary & Secondary Education

Are you elegible to get accepted, competing with high school students a problem??i'm lost and wondering if i should give up on the dream of going to University in america.Anybody have suggestions..or information on alternative education and steps..I'm in this rut, falling into lost hopes, wondering if there are other adults schools with as many oppurtunities..Can adults pick up the pieces or is high school your only chance to shine..these questions are going through my head lately, I am searching for somebody to please help me to my problems...You would be a great help if you could give me plans and ideas..make my life alot easier so PEOPLE turn your light bulbs on and be graceous.

2006-10-11 20:18:57 · 5 answers · asked by Anonymous in Other - Education

2006-10-11 20:15:11 · 20 answers · asked by Bobsinclair 2 in Trivia

2006-10-11 20:14:56 · 3 answers · asked by Lim S 3 in Primary & Secondary Education

energy

2006-10-11 20:14:38 · 6 answers · asked by madni 1 in Other - Education

Need it for my assignment. Thank's. =)

2006-10-11 20:09:51 · 5 answers · asked by sylvdoanx 2 in Higher Education (University +)

2006-10-11 20:08:25 · 1 answers · asked by Anonymous in Higher Education (University +)

I saw a list the other day and can't get back to it. Don't want a general list of all programs by all colleges around the country -- just the CSUs

2006-10-11 20:06:48 · 1 answers · asked by sfox1_72 4 in Higher Education (University +)

A 67.9kg skier coasts up a snow-covered hill that makes an angle of 27o with the horizontal. The initial speed of the skier is 8.0m/s. After coasting a distance of 2.0m up the slope, the speed of the skier is 3.00m/s. Calculate the work done by the kinetic frictional force that acts on the skis.

This is my last problem of my 20 that I needed to do. I have created a sketch to try and figure out other variables, but nothing seems to be coming together. I found out the PE and KE, but am unsure how it can be used with the negative acceleration that I also found. It seems like I am making it harder then it really is. Should I use sin to find out the height cahnge?

2006-10-11 20:02:38 · 1 answers · asked by CarpeDiem22 1 in Homework Help

2006-10-11 20:02:30 · 8 answers · asked by JoLLie 2 in Homework Help

2006-10-11 20:00:56 · 1 answers · asked by toplea 1 in Higher Education (University +)

2006-10-11 19:54:15 · 8 answers · asked by bLuR.? 2 in Other - Education

i need samples of turn papers

2006-10-11 19:51:24 · 4 answers · asked by Anonymous in Higher Education (University +)

what makes an Indian -- citizenship, culture, race, religion, language or something other than this or a comibination of this?

2006-10-11 19:49:58 · 11 answers · asked by Jacob T 1 in Other - Education

doing world and can't find the meanig of this "royal law of the land"

2006-10-11 19:45:17 · 2 answers · asked by Serendipity P 1 in Homework Help

I need to what is the quickest way to get high school Diploma. I am in my last year of high school. But I need to know how can I get my diploma so I can start school. Help please. Cause I have a son and I need a career. And I always wanted to do nursing.

2006-10-11 19:44:48 · 3 answers · asked by LILY 1 in Other - Education

" everybody is entitled to their own stupidity but some abuse the priviledge.."

some are so stupid that even if they knew already their stupidity, still, they continue doing stupid things..

2006-10-11 19:43:16 · 15 answers · asked by ok 4 in Quotations

I found the answer in the back of my book, But I just can't figure ut how they got that answer. The answer is at the bottem, but could you please help me figure out how to do this?

Note: ____ is just empty space
also ≥ is Greater than or equal to.

Evaluate the function for the given value of x.
(Help with # 13)

______( 5x-1,____if x< -2___________13. f(-4)
__f(x) ={
______( x-9,_____if x≥-2___________14. ...
________________________________15. ...


Answer: to #13

-21

2006-10-11 19:40:44 · 1 answers · asked by clueless 2 in Homework Help

Is peace in this statement spelled peace or piece?

2006-10-11 19:38:59 · 3 answers · asked by sadgurl4vr0 1 in Quotations

If not, just what DOES it mean (pray tell)?

2006-10-11 19:37:41 · 15 answers · asked by Brian 3 in Words & Wordplay

2006-10-11 19:36:10 · 10 answers · asked by 3dguru 1 in Teaching

A small block slides along a track from one level to a higher level, by moving through an intermediate valley (see Figure). The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. Assume that the block's initial speed is 11 m/s, the height difference h is 3.5 m, and muk is 0.66. Find the distance d that the block travels on the higher level before stopping.

2006-10-11 19:31:22 · 1 answers · asked by CarpeDiem22 1 in Homework Help

I read it but i cannot seem to conclude who it is?

ThAnKs for any help :)

2006-10-11 19:30:15 · 2 answers · asked by Anonymous in Homework Help