An electron travels at 0.479c. Calculate the electron's Einsteinian momentum p. kg-m/s Calculate the electron's Einsteinian kinetic energy K. K = Calculate the electron's rest energy Eg. E, = Calculate the electron's total energy E. E =
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Q: relativistic momentum
A: Given speed of electron v=0.75c rest mass of the electron m0=9.1×10-31kg Speed of light c=3×108m/s
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- 1. If the velocity of your spaceship goes from 0.3c to 0.6c, then your mass will increase bya. 19%b. 38%c. 74%d. 100%e. 200%Question Consider the inelastic collision. Two lumps of matter are moving directly toward each other. Each lump has a mass of 0.500 kg and is moving at a speed of 0.930c. The two lumps collide and stick together. Answer the questions, keeping in mind that relativistic effects cannot be neglected in this case. What is the final speed vf of the combined lump, expressed as a fraction of c? Uf = What is the final mass mf of the combined lump immediately after the collision, assuming that there has not yet been significant energy loss due to radiation or fragmentation? mf = kg10. particle has a momentum of 400 MeV/c and kinetic energy of 100 MeV. Determine its mass in MeV/c2. *
- In Lorentz transformation appears the Lorentz factor denoted by the Greek letter Y. This Lorentz factor Select one: a. depends on the relative speed between two inertial reference frames. b. depends on the location of the event as seen by two inertial reference frames. depends on the velocity of the particle on which we want to perform the transformation. c. d. depends on the speed of the particle on which we want to perform the transformation. e. is an invariant constant of nature. ⚫ f. depends on the relative velocity between two inertial reference frames. ×multiple choice question As the velocity of an inertial frame of reference increases with respect to a stationary observer, Einstein's theory of special relativity predicts that the length of an object, measured in the dimension parallel to the motion of the reference frame, will A decrease. B. remain unchanged. Jump to 1 2 3 4 5 6 7 8 9 10 increase. D. increase at first but start to decrease when the speed of the reference frame equals half the speed of light. E. decrease at first but start to increase when the speed of the reference frame equals half the speed of light.8. In a proton linear accelerator, protons are accelerated to have a kinetic energy of 550 MeV. What is their relativistic momentum? (The rest mass of a proton is 1.67 x 10-27 kg.) kg.m/s 16
- 2. Calculate the momentum, kinetic energy, and total energy of an electron traveling at a speed of 0.744c.24. A person in a spaceship passing Earth observes her own heart rate to be 75 beats / minute and her spaceship to be 60 m long. A person on Earth observes the spaceship person's heart rate to be 45 beats / minute and her spaceship to be long. A.36 m B. 48 m C. 60 m D. 75 m E. 100 mAn astronaut on a rocket ship is headed straight for another galaxy and an observer is standing on Earth. If they both shine a flashlight simultaneously as the rocket ship is moving away at a large speed, which of the following is true? A. The person on the rocket measures a higher velocity for the light from the flashlight. B. The person on the Earth measures a higher velocity for the light from the flashlight. C. They both measure the same velocity of light. D. It cannot be determined without additional information.
- A radioactive element is kept inside a laboratory. Person A is stationary with respect to the lab. Person B is moving at a speed of 0.5c with respect to the lab. Person C is moving at a speed of 0.9c with respect to the lab. Which person will measure the shortest half-life A. Person C B. Person A C. All of them measure the same half-life D. Person BWhat is the total energy of an electron moving with a speed of 0.950 c? a. 2.6 x 10-13 J b. 1.1 × 10-13J c. 1.2 x 10-14 J d. 8.2 × 10-14 JA particle travels at 0.60c. Determine the ratio of its kinetic energy to its rest energy.A) 0.25B) 0.50C) 0.60D) 0.64E) 0.80