physics question

Guest · Post by **Guest** » Wed Dec 21, 2005 3:30 am

when am I supposed to use Lorentz velocity transformation?

Post by **glossy** » Wed Dec 21, 2005 3:58 am

i don't even know what that is. something to do with relative velocities? (in which case, it's always active?)

Guest · Post by **Guest** » Wed Dec 21, 2005 4:01 am

Well, thats sort of the question, mate. Although I think its always active, too.

Post by **glossy** » Wed Dec 21, 2005 4:09 am

I wish my physics notes were neater... we learned this.

You should only apply anything when it's going to have an effect on the outcome -- if someone's running on the ground and you're standing next to them (so you're 'stationary'), then don't bother. If you're in a car and they're running alongside, you would.

Post by **glossy** » Wed Dec 21, 2005 4:10 am

So basically, whenever the observer's and oberservee's (um?) frame of reference has a difference in absolute velocities

Post by **MKJ** » Wed Dec 21, 2005 9:38 am

another toxicbug "do my homework" thread

read a textbook, homo. you might learn something

Post by **Grudge** » Wed Dec 21, 2005 9:56 am

or just google it ffs

Post by ek » Wed Dec 21, 2005 10:02 am

i dont think the idiot knows how to google. and reading is not an option.

Post by **tnf** » Wed Dec 21, 2005 5:26 pm

Yea, you use it when dealing with relativisitic velocities.
Different frames of reference and all that.

Post by **Fender** » Wed Dec 21, 2005 5:35 pm

Is that 1 / sqrt( c^2 - (v^2/c^2)) ???
I forget.
That's the part everyone leaves out in E = mc^2. It should be E = gamma * m * c^2, where gamma is that formula I posted.

Guest · Post by **Guest** » Wed Dec 21, 2005 6:23 pm

Its 1 / sqrt( 1 - (v^2/c^2)) actually.

Post by **Nightshade** » Wed Dec 21, 2005 9:02 pm

tnf wrote:Yea, you use it when dealing with relativisitic velocities.
Different frames of reference and all that.

Goddamnit, stop doing this retard's homework for him.

Post by **bitWISE** » Wed Dec 21, 2005 9:20 pm

glossy wrote:I wish my physics notes were neater... we learned this.

You should only apply anything when it's going to have an effect on the outcome

duh

Post by **plained** » Wed Dec 21, 2005 10:03 pm

i think whenever is fine