Q: A particle of mass m whose total energy is twice its rest
A particle of mass m whose total energy is twice its rest energy collides with an identical particle at rest. If they stick together, what is the mass of the resulting composite particle? What is its...
See AnswerQ: A neutral pion of (rest) mass m and (relativistic
A neutral pion of (rest) mass m and (relativistic) momentum / decays into two photons. One of the photons is emitted in the same direction as the original pion, and the other in the opposite direction...
See AnswerQ: In the past, most experiments in particle physics involved stationary targets
In the past, most experiments in particle physics involved stationary targets: one particle (usually a proton or an electron) was accelerated to a high energy E , and collided with a target particle a...
See AnswerQ: In a pair annihilation experiment, an electron (mass m)
In a pair annihilation experiment, an electron (mass m) with momentum pe hits a positron (same mass, but opposite charge) at rest. They annihilate, producing two photons. (Why couldn’t they produce ju...
See AnswerQ: In classical mechanics, Newton’s law can be written in the more
In classical mechanics, Newton’s law can be written in the more familiar form F=ma. The relativistic equation, F=dp/dt , cannot be so simply expressed. Show, rather, that / where a ≡ du/dt is the ord...
See AnswerQ: Show that it is possible to outrun a light ray, if
Show that it is possible to outrun a light ray, if you’re given a sufficient head start, and your feet generate a constant force.
See AnswerQ: Define proper acceleration in the obvious way: /
Define proper acceleration in the obvious way: / (a) Find α0 and α in terms of u and a (the ordinary acceleration). (b) Express αμαμ in terms of u and a. (c) Show that ημαμ = 0. (d) Write the Minkows...
See AnswerQ: As the outlaws escape in their getaway car, which goes /
As the outlaws escape in their getaway car, which goes / the police officer fires a bullet from the pursuit car, which only goes / The muzzle velocity of the bullet (relative to the gun) is / Does the b...
See AnswerQ: Show that / where θ is the angle between u
Show that / where θ is the angle between u and F.
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