parts Definition and 817 Threads

Can anyone please expalin to me how it's possible for wormholes to lead into different parts of space, and even time? Thanks.

I'm real stuck with this problem of mine in The Calculus 7 by Leithold \int arctan \sqrt{x} dx Since there is no elementary formula for integration of an inverse trigo function, we cannot manipulate the integrand in such a way as to integrate easily with one step of Integration by...

has anyone here ever built a crystal radio? what parts would i need and where can i get them? in the physics forum they said one could be constructed to run off the radio waves themselves, which is the kind i would like to build. thanks

I'm stuck on this one problem. If anyone can aid me, I would greatly appericate it. http://home.comcast.net/~personalcomp1/Impossible_calc_problem.JPG I scaned in the problem sooo there's the place to view it. Thanks

Please help me with this problem using the "integration by parts" method. ∫2x times natural log of (3 x) dx Appriciate it!

Tommorrow I have a practical on the dissection of a fetal pig I have been doing all week. Today I removed the brain- intact out of the pig. I have completely forgotten a couple parts of the brain- and would like to remember them when I have the test tommorrow. Since the pig brain is similair in...

this is a list of parts i plan to use in my new pc what do you think? asus a7n-8x-x n- vidia motherboard amd anthlon xp2500 plus 333 fsb akasa silver mountain heavy duty fan 2 sticks pc2100 ddr dimm memory 60 gb hitachi deskstar 7k250 7200rpm ide hdd screwless midi tower 350 watt psu i...

I've included a picture. Two charges Qc and -Qc(Qc = 4 µC) are fixed on the x-axis at x = -7 cm and x = 7 cm, respectively. A third charge Qb = 5 µC is fixed at the origin. A particle with charge q = 0.3 µC and mass m = 5 g is placed on the y-axis at y = 14 cm and released. There is no...

I've included a picture. Two charges Qc and -Qc(Qc = 4 µC) are fixed on the x-axis at x = -7 cm and x = 7 cm, respectively. A third charge Qb = 5 µC is fixed at the origin. A particle with charge q = 0.3 µC and mass m = 5 g is placed on the y-axis at y = 14 cm and released. There is no...

Hey all-- I had an Integration of Parts quiz today and got stuck on a few problems-- was wondering if you could explain the steps involved in solving these integrals: int( (sin(3x))^3 * (cos(3x))^3 dx) and int( (tan(4x))^4) dx) thanks!

How come when manufacturers pre-size things for the mould, they ALWAYS come up with such random numbers! For example today, i was looking for a new CD rack, and all i saw were things like "holds 64 cds", "can store up to 92 cds", holds "140 cds and 14 videos", holds "312 cds and 41 DVDs"...

I am studying for a midterm, was browsing over an old midterm and found this question \int e^{3x} \cos{(x)}\; dx Can't figure it out, help would be appreciated

I have no mechanical parts but I take you for a ride. I won't be ridden in a desert or on a mountainside. Each time the ride is different - no two are ever the same. Some are wild and treacherous and some are very tame. What am I?

A picture has been included for your viewing pleasure. A stick of uniform density with mass M = 7.7 kg and length L = 0.6 m is pivoted about an axle which is perpendicular to its length and located 0.16 m from one end. Ignore any friction between the stick and the axle...

Can someone explain the notation of the parts formula pls.,.. it's very very confusing. int [u dv] = uv - int [v du] ... very confuzing, ... made me think it was the product formula lol. And I still don't understand what does dv and dx and all these d stuff standfor in integrals...

Hi can anyone help me solve this integral, I'm having trouble with this one? the integral is: int(sin^{8}x.dx)->upper limit=pi ->lower limit=0. Q) Evaluate the integral exactly using integration by parts to get a reduction formulae for int(sin^{n}x.dx)

Why does water spin in different directions at different parts of the world? Also, which way does it spin on the equator?