Recent content by bonbon22

If i had this other scenario where one proton is smashing into another which is stationary. Which creates a new particle, also stationary. Then balancing the four momentum i get P1 + P2 = P3 squaring i get P1^2 + P2^2 +P1.P2 =P3^2 . Since particle 2 let's say in this case...

So if i had this problem where i am squaring a four momentum vector with itself which gives P2 = (##\gamma mc## )2 - ##\gamma##2## m ##2##\vec v## *##\vec v## I have been told that the gamma factor is not considered at all. why would the gamma factor drop off? Does this rule apply to any...

no i understand that replying to what @PeroK said i wrongly made v = to c to make gamma = to 1 by mistake. Wait why does it drop out for any v.

I just realized my mistake apologies, for making v = to c and actually solving the problem cheers you two. @Ibix @PeroK

Why are you tryn diss me mate you feelin alright. I understand the expression but why would you write v=o when you square a four momentum. If you read my post you would know what level I am studying at.

I see, i understand so in this case do we just ignore the gamma factor? Can we only ignore this factor when gamma is equal to 1 for that to be true wouldn't the velocity be equal to C?

i see, but how does that link in with the problem?

Exactly thank you that does look better I am new to using the symbols my mistake. So squaring a four momentum vector with itself gives (##\gamma mc## )2 subtracted with the ##\gamma##2## m ##2##\vec v## *##\vec v## where the ##\vec v## *##\vec v## can be written as the...

So i have taken a beginner course on relativity, first year physics student. I am confused as to why four momentum squared simply gives m2* c2*ϒ2 -(three vector multiplied and added with corresponding parts) *ϒ2 so as the three vector part which is being subtracted, is the same as - (P...

i see that makes sense does the argument function cancel out the (r_1/r_2)e^{i] so you are just left with theta 1 - theta 2?

above video states that arg(z1/z2) = arg(z1) - arg(z2) this is seems very similar to Log rules but these are inverse function for angles right? And log rules only apply to logarithms, not sure where he got this from? What am i missing?

Z can be any point on the argand diagram so if z molous is less than 2 , is that somehow giving us the distance from origin? But how i assumed mod sign only makes things positive therefore its not sqrt( (x+yi)^2 ) = distance ??

upwards? Is the voltage direction of the resistor always opposite to the capacitor? essentially does the resistor current flow in the opposite direction to the capacitors?

can anyone explain why the voltage reading is negative for the resistor over a time period , yet the capacitor reading always stays positive ? In AC generation the voltages goes from negative to positive, how exactly does this affect the circuit components voltages? I am not sure how AC affects...

okay got you, one very final question to clear my mind , should i assume that the D value is the diameter of a very large circle which essentially touches the earth. as intensity is power / surface area <----- and this surface area is just a really big circle.