

02182010, 09:24 PM

#1114

the rent is too damn high
Join Date: Jun 2007
Location: Amurikuh

yeah lol fortunado is the one that gets all drunk and what not and the other guy (can't remember his name) brings him down into a crypt and buries him alive by putting up bricks while fortunado just stands there loling



02182010, 09:27 PM

#1115

Join Date: Mar 2006
Location: Hotlanta, GA

Solve the Taylor Series for y=cosx at a=4 with degree 5.



02192010, 11:33 AM

#1116

and that's what's up!

In problems dealing with a pulley with a nonzero moment of inertia, the magnitude of the tensions in the ropes hanging on either side of the pulley are not equal. The difference in the tension is due to the static frictional force between the rope and the pulley; however, the static frictional force cannot be made arbitrarily large. Consider a massless rope wrapped partly around a cylinder through an angle Δθ (measured in radians). It can be shown that if the tension on one side of the pulley is T, while the tension on the other side is T' (T' > T), the maximum value of T' that can be maintained without the rope slipping is T'max =
TeμsΔθ
, where μs is the coefficient of static friction. Consider the Atwood's machine below: the pulley has a radius R = 0.17 m, the moment of inertia is I = 0.39 kg · m2, and the coefficient of static friction between the wheel and the string is μs = 0.31.
(a) If the tension on one side of the pulley is 11 N, what is the maximum tension on the other side that will prevent the rope from slipping on the pulley?
____N
(b) What is the acceleration of the blocks in this case?
_____m/s2
(c) If the mass of one of the hanging blocks is 1.1 kg, what is the maximum mass of the other block if, after the blocks are released, the pulley is to rotate without slipping?
____kg
Halp please



02222010, 01:40 AM

#1117

~~~~~GO COLTS~~~~~
Join Date: Aug 2006
Location: Bellingham, WA

Please answer my survey to the best of your abilities, if you don’t feel comfortable answering a question just leave it blank, and if there’s choices in parentheses please choose from those. Pm me your answers. Also have your friends participate because i need at least 35 people surveyed. Thank you.
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02242010, 01:20 PM

#1118

PMP's FOR LIFE
Join Date: Jul 2008
Location: 386FL 661CA 845NY

can someone please help i am dying here
calculus AB:
separable differential equations
dy/dx = ((3x^2)+2) / y
please help and if you could post an over view of your work that would be great



02242010, 02:30 PM

#1119

Join Date: Feb 2003
Location: Long Island, NY

Quote:
Originally Posted by clumsy
can someone please help i am dying here
calculus AB:
separable differential equations
dy/dx = ((3x^2)+2) / y
please help and if you could post an over view of your work that would be great

Just get the y terms on the side with dy, and the x terms on the side wth dx.
y*dy = ((3x^2)+2)*dx
Now integrate both sides, I'm assuming you know how to do this, they are both very basic integrations. Don't forget integration constants.



02242010, 03:58 PM

#1120

PMP's FOR LIFE
Join Date: Jul 2008
Location: 386FL 661CA 845NY

Quote:
Originally Posted by PaRaDoX
Just get the y terms on the side with dy, and the x terms on the side wth dx.
y*dy = ((3x^2)+2)*dx
Now integrate both sides, I'm assuming you know how to do this, they are both very basic integrations. Don't forget integration constants.

thanks man for some reason i want to do the derivative of both sides... i kinda feel dumb for asking that



02252010, 03:25 PM

#1121

All Paintball Supplies
Join Date: Mar 2002
Location: Richmond, VA

That one was a blast from the past, i used to love derivatives.



02252010, 04:20 PM

#1122


A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 12 m/s, skates by with the puck. After 3.0 s, the first player makes up his mind to chase his opponent. If he accelerates uniformly at 4.0 m/s2, determine each of the following.
(a) How long does it take him to catch his opponent? (Assume the player with the puck remains in motion at constant speed.)
Son of a *****, I guessed around 9 and it appears I'm quite close, but I have no idea how to do it really. Since the final x position is the same, I believe I can set them equal to each other. I'm using this equation.
X  Xo = Vot + .5at^2
And I end up getting 1/2a^2=36+Vf(final velocity of opponent)(time)
But then I don't understand what I put in for acceleration, the 4m/s^2?



02252010, 04:49 PM

#1123

rhapsodie hongroises
Join Date: Jun 2007
Location: 414 or 518

12(t+3) = .5(4)t^2
The guy with the puck goes for three 3 more seconds, hence the 12(t+3). Acceleration is 4. The opponent's V0 is 0, so you can just drop that part.
You get t = 8.19615 seconds
__________________
Amateurs do it until they get it right.
Professionals do it until they can't get it wrong.
FireZerg



02252010, 08:00 PM

#1124


Ugh, I didn't think of adding the 3, that's way simpler than I was making it.
Thanks.



03012010, 05:50 PM

#1125

lol psh
Join Date: Jan 2007
Location: Mill Creek

i have a calc question.
I need to derive this equation:
(x^3)/(6x^2)
I keep getting [x^2(15+2x^2)]/(6x^2)^2
but the right answer is:
[x^2(18x^2)]/(6x^2)^2
Edit:
nevermind I got it haha
__________________
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and my gf was over solo we ****ed and mom came down right at the money shot . lol
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Originally posted by Op350: Well he didn't REALLY do anything lol. He just didn't tap out.
Originally posted by W.K.S.: skittles is the ****
Last edited by I <3 Skittles : 03012010 at 06:01 PM.



03022010, 07:45 PM

#1126

Shoop da Whoop.
Join Date: Aug 2009
Location: [704]

My gf needs help with her math homework, and I'm terrible with matracies.
Write the linear system as a matrix equation.
x+4y=3 and 2x3y=1
I dont remember if you go X='s and Y='s or what



03032010, 08:30 AM

#1127

All Paintball Supplies
Join Date: Mar 2002
Location: Richmond, VA

i think it goes X then y
and i think C = the other number which is supposed to be on the same side as the variables.



03032010, 05:30 PM

#1128

and that's what's up!

Quote:
Originally Posted by Clint Eastwood
A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 12 m/s, skates by with the puck. After 3.0 s, the first player makes up his mind to chase his opponent. If he accelerates uniformly at 4.0 m/s2, determine each of the following.
(a) How long does it take him to catch his opponent? (Assume the player with the puck remains in motion at constant speed.)
Son of a *****, I guessed around 9 and it appears I'm quite close, but I have no idea how to do it really. Since the final x position is the same, I believe I can set them equal to each other. I'm using this equation.
X  Xo = Vot + .5at^2
And I end up getting 1/2a^2=36+Vf(final velocity of opponent)(time)
But then I don't understand what I put in for acceleration, the 4m/s^2?

A. Xo=0 V1o=0 so that leaves X=(1/2)at1^2
X=V2xt1
t2=sqrt( (2(v2t1))/a)
t2=4.24s



03032010, 09:21 PM

#1129

Mr Dr Pepper on the Rocks

establish the identity:
(csc(x)1)/(csc(x)+1)=(1sin(x))/(1+sin(x))



03032010, 10:21 PM

#1130

rhapsodie hongroises
Join Date: Jun 2007
Location: 414 or 518

Quote:
Originally Posted by _WARRIOR_
establish the identity:
(csc(x)1)/(csc(x)+1)=(1sin(x))/(1+sin(x))

just sub in 1/sinx for the cscx terms, make common demonimators on both sides of the compound fraction then cancel the denominators of both. magic.
__________________
Amateurs do it until they get it right.
Professionals do it until they can't get it wrong.
FireZerg



03042010, 04:33 PM

#1131

black AND white
Join Date: Feb 2008
Location: never move to, NC

Can anybody help me with my english project?
I need to write a thesis statement about The Scarlet Letter, my teacher told us how to do it in class but i forgot my binder that i wrote it down on in my locker.
__________________
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03042010, 09:11 PM

#1132

eBay/PayPal Hater
Join Date: Jan 2010
Location: New Jersey

I have this question for homework and I have no idea how to do it. We need to find the population standard deviation and the sample standard deviation.
The values for (xi) are 3/6/7/8/5,
and the (fi) frequency is 4/3/1/1/3. Can you help? Thanks!



03062010, 10:02 AM

#1133

I mean, nobody even knows

Guys I am doing some extra credit in my oceanography class and the subject is the physics of tides. I've explained what causes tides and tidal force, but I'm not sure what more I could cover to fully explain the physics of tides.
Any help?



03082010, 09:08 AM

#1134

All Paintball Supplies
Join Date: Mar 2002
Location: Richmond, VA

If you are looking for more content, maybe you could type in the importance of tides and myths about how tides occur...



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