Lesson: Relativistic Energy
In this lesson, we will learn how to calculate the kinetic energy of objects moving at speeds large enough such that relativistic effects need to be taken into account.
Sample Question Videos
Worksheet: 19 Questions • 5 Videos
A neutral kaon is a particle that decays into two -mesons. The kaon has a rest mass energy of 497.6 MeV and muons have a rest mass energy of 105.7 MeV. Suppose the kaon is at rest and all the missing mass goes into the muons’ kinetic energy. Assuming energy is shared equally between the two muons, how fast will the muon move?
Find the energy released, assuming negligible kinetic energy before the annihilation.
If the annihilation energy released is given to a proton in the form of kinetic energy, what is the proton’s velocity?
If the annihilation energy released is given to an electron in the form of kinetic energy, what is the electron’s velocity?
The big bang that began the universe is estimated to have released J of energy. How many stars could be created by half of that energy if the average mass of a star is kg?