Thread: A pointless thread
03-01-2004, 05:57 PM #1
A pointless thread
So you just had to look. I told you it was pointless.
ok hows about a michael jackson joke
What time does micheal jackson go to bed?
when the big hand touches the little hand.
03-01-2004, 06:00 PM #2Retired Vet
- Join Date
- Nov 2001
Your about 50 yrs too late. This has been flogged to death.
03-01-2004, 06:06 PM #3
Since you are all so bored and making pointless threads and what not, someone should PM me to help me with a relativity problem I'm having trouble figuring out.
Not that I'm going to keep my hopes up or anything, as when I usually mention the word 'physics', whatever thread I'm on dies.
So how about them Packers? Griffey get to 500 yet?
03-01-2004, 06:07 PM #4
whats the physics problem?
03-01-2004, 06:27 PM #5
you know why they saw michle jackson at k-mart?
he heard about the sale, litttle boys underwear half off
03-01-2004, 06:28 PM #6Originally Posted by monstercojones
Relativistic speed of light derived from Newtons second law.
In classical physics, force is given by
So using F=m dv/dt
int dv=int a dt
v=a int dt
Where a=F/m is the slope of the line (linear) on a t vs v graph. However, this is wrong, as the line should asymptotically approach a limit of c.
The problem is that p=mv is wrong in relativistic terms. Relativistically, p=(gamma)mv
BUUUUUT (gamma) depends on v........ so taking the derivative will act on (gamma) which DEPENDS on v.
I am trying to come up with a (rather complex) integral using substitutions and exponentials to show the actual speed of light barrier which can be reduced to non-relativistic terms when v approaches zero and gamma approaches 1 giving F=(1)ma=ma
This problem also deals with imaginary numbers, as the example given was the speed of 2c.
Classically, this gives (gamma)=(1-(v^2/c^2))^(1/2)=(1-4)^(1/2)=1/3i where i=(-1)^(1/2)
My problem is that I really don't know where to even start.
I'm thinking I need to use the non-classical definition of momentum p, but where and how?
[hey, you asked ]
03-01-2004, 06:37 PM #7
After typing all of that out, I dang well better get some replies. I really don't care what the replies are about, but I better see some here real quick-like.
03-01-2004, 06:42 PM #8
[shaking in my shoes]......... was up with all the chicken scratch????????????
03-01-2004, 06:43 PM #9Originally Posted by bornbad71
03-01-2004, 06:48 PM #10Originally Posted by bornbad71
Now how about a solution to the problem, huh? I'll be up all night, so if it takes you a while, I'll still be here.
03-01-2004, 08:01 PM #11AR-Hall of Famer / Retired
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- Aug 2001
- Wherever necessary
well at least we both agree that neither of us would know where to start on that
03-01-2004, 09:21 PM #12
just keeping the insanity going..........The answer to your every question
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