Kassarus

The thrust F of a propeller is generally thought to be a function of its diameter, the angular velocity, the forward speed, along with the density and viscosity of the fluid. Determine a set of dimensionless groups.

More interested in someone showing me how you can calculate dimensionless groups with this example. I have the answer just not sure how to get it. e.g why does k=6, r=3, for pi1, a=-1, b=-2, c=-2 etc.

r(t)=(t^2+4,sin(2t), t /( 2t^2+4) )

suppose F(t) is an anti derivative of r(t), and it is known that F(0)=(1,-1,(1/2)ln(2)). Find F(t)

Been scratching my head on this one for a while. Really not sure how to solve it.

I have the derivative of r(t) but have no idea if that helps.

sum (from n=2, to infinity) 5(1+c)^(-n)=2

Any help would be appreciated.

(d/dt)x(t)+(5t/x(t))=0. where x(0)=8

y=4x^(2)+7

from x=0 to x=1

Find the length of the Curve:y=7+ln(cos(x)), x>0 and x<(pi)/(4)

NOTE: > and < are greater than or equal to, not a sign for it on computers.

Been trying at this problem for a while and need some help.

Just need some tips for solving these problems, kind of stuck.

Question1.

Check the sequence {a(n)} defined below is convergent and find it's limit.

Note, i've written a(n) or similar several times, the n + x means it's in subscript, not multiplying.

a(1)=1, a(n+1)=8-((1)/(a(n)),n greater than or equal to 1.

Question 2.

Find an antiderivative of 4x^(3) that passes through the point (3,-1).

Question 3.

This ones a bit hard to type so i've posted a link to wolfram with the integral on it

compute (the integral)dx by taking a limit of the Rienmann sum as n approaches infinity.

link: http://www.wolframalpha.com/input/?i=int+%283x%5E%...

Question 4

Let f(x)=10x^(3)+5

i)List the evaluation points x(i) needed in a left-end Riemann sum on the interval [2,3,6], using 4 points

ii)list the values f(x(i)), separated by commas, use exact values.

iii) compute the Reimann sum. Use the exact value

I've convinced my girlfriend to watch a horror movie with me, but her only condition was that i watch that Justin Beiber movie. So my plan is to milk this for all its worth. I want to make sure she's more scarred than me. Suggestions, stuff that will seriously cause life scarring fun times.

i can typically do these questions but the absolute value is throwing me off. I know i have to derive it (but can't do it because of the absolute value), set the derivative to 0, and then find x.

So saw i nice Maton M225 at a a guitar store today, second hand, but in pretty good condition for $900. It's had a fishman pre-amp/pickup system installed. Was wondering if anyone has any experience with these guitars. I can find a new M225 for about $850 near the store, but this does not have the fishman pre-amp, or i can get a Maton EM225C (same thing with a cut away and the Maton pickups/pre-amp instead of the fishman) for $1200.

So the really difference here is the fishman/maton pick ups or pre-amps, what do people think of the fishman pick ups/preamps. Already prefer the one without the pick up so right now i'm just measuring up the pros and cons.

Thoughts, opinions, ideas?

Basically my CPU usage is insanely high even when i'm only running a basic program (struggled playing solitaire). I opened up task manager and the performance page tells me my CPU usage is at about 75-100% and my memory is at about 1.7. swapping over the the processes view, however, tells me that the most CPU heavy program is about 5% (Google chrome).

ASUS X61

Vista Biz. 32 Bit, Service Pack 2

4GB Ram

320 GB Hard Drive

Dual Core 2.26 CPU (Duo P84000

Done some virus scans, deleted files from my C: drive, kinda lost for ideas, any recommendations.

So i have a graph in excel with 3 data series i need to add a trend line to, but every time i try it will ask me what series to add it to, need to have it for all 3.

So on the world adventures expansion, when returning home, the loading screen will load to almost full and then stop completely. Basically it will sit there for as long as i leave it on trying to load, i left it off on for about 3 hours and nothing.

I've found this problem all over google, i've cleared the caches, have no mods installed, made new user files and nothing seems to have worked so far.

My computer easily has high enough specifications. Anything any one would recommend i try?

Me and a few friends are looking at going on a working holiday in December. We have from the 19th of December till about the 18th of February (about 2 months). Wondering if that would be enough time to do one and if anyone knows any good companies that offer work for around this time. Thanks

Curious as i disliked the anime ending but liked the movie, and would be kinda cheesed off if it ended like the anime.

On a side note is it done well? i.e. was it a bad spin off?

Ive just got my iPad and after a short look have realised it does not come with a word processor. The most important thing for me is for it to a) work and b) have good transferability to a Microsoft office seeing as I do the large majority of my work on an actual computer.

From what I've seen the two most popular ones are pages and quick office. Any experienced views are welcome.

I plan to go to Japan at some point next year and figured i'd go with a tour company. I would prefer to find something that has 3 or 4 week tours (or longer, not shorter), at a good price and if possible for younger people (kinda like the Contiki tours but i can't find any for Japan.)

Please tell me if your speaking from experience as well. (if you've gone on the tour.)

So i have a series of yes/no answers on a spread sheet as follows

Yes - 136

No - 95

How would i find the statistics of this sort of data (note there are 231 participants.)

I was using my USB (Toshiba 4 gig) which I've had for a while now, I handed it to a friend who put it in his new windows 7 laptop which has Norton and hasn't been on the school network internet and not for that long, when I put the USB back into one of the school computers it comes up with the message "You need to format the disk in drive H: before you can use it". Naturally I don't want to be formatting the USB i've been using for school with all of my project files, are then any solutions to this short of formatting the USB such as recovery tools.