1. A particle decays in 2.0 ms in its rest frame. If the same particle moves at v=0.60c in the lab frame, how far will it travel in the lab before decaying?
2. The mean kinetic energy of the conduction electrons in metals is ordinarily much higher than kT because
3. The driver of a police car hears an echo of the car’s siren from a wall toward which the car is moving with a speed of 3.5 m/s. If the speed of sound is 350 m/s and the frequency of the siren is 600 Hz, the driver hears the echo at a frequency nearest to which of the following?
4. If the total energy of a particle of mass m is equal to twice its rest energy, then the magnitude of the particle’s relativistic momentum is
5. Under ideal conditions, the electric and magnetic fields inside a superconductor are zero. Maxwell’s equations imply that which of the following must be true just outside the surface of the superconductor?
