Particle X has a speed of 0.850 c and a momentum of 8.85x10-19 kgm/s. What is the mass of the particle? 1.8286*10^27kg Hints: The classical momentum of an object is the product of its mass and its velocity. How does the relativistic moment to the classical momentum? Submit Answer Incorrect. Tries 3/99 Previous Tries What is the rest energy of the particle? Submit Answer Tries 0/99 What is the kinetic energy of the particle? Submit Answer Tries 0/99 What is the total energy of the particle? Submit Answer Tries 0/99
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- What is the total energy of an electron moving with a speed of 0.950 c? a. 2.6 × 10-13 J b. 1.1 × 10-13 J c. 1.2 × 10-14 J d. 8.2 × 10-14 JA neutron lives 900 s when at rest relative to an observer. How fast (as a fraction of the speed of light, c) is the neutron moving relative to an observer who measures its lifespan to be 2065 s? A. 0.938 c B. 0.965 c C. 0.982 c D. 0.910 cWhat is the momentum in MeV/c of an electron with a kinetic energy of 2.00 MeV?
- Particles accelerators such as the Large Hadron Collider (LHC) can accelerate particles up to tremendous energies. Suppose the LHC accelerates alpha particles (a.k.a. helium nuclei with a charge of +2e and a mass of 6.645 x 10-27 kg) with a kinetic energy of 7.5 TeV*, what would the speed of one particle be if relativistic effects** are ignored? Give your answer in units of Gm/s. *T as in Tera, for 1012. "eV" stands for "electron volt," which is a non-Sl unit of energy equal to what one electron would gain after travelling through 1V. 1eV = 1.602 x 10-19 J. **Special relativity is necessary to correctly account for the limiting speed of light, which is about 3 x 10° m/s. Note that in ignoring this effect and applying Newtonian mechanics (what you learned in Phys1210 or equivalent), you'll be getting a speed way above 0.3 Gm/s. That's just how insanely energetic the LHC is.A friend speeds by you in her spacecraft at a speed of 0.790 c. It is measured in your frame to be 4.60 m long and 1.60 m high. Part A What will be its length at rest? lo = 7.50 m Submit ✓ Correct Correct answer is shown. Your answer 7.49 m was either rounded differently or used a different number of significant figu Part B What will be its height at rest? ho= 2.61 Submit Previous Answers Request Answer Part C Previous Answers X Incorrect; Try Again; 4 attempts remaining Submit Part D IVE ΑΣΦ How many seconds elapsed on your friend's watch when 23.0 s passed on yours? Ato 14.1 s Submit Part E ✓ Correct Important: If you use this answer in later parts, use the full unrounded value in your calculations. Ato = Previous Answers How fast did you appear to be traveling according to your friend? OF [Π ΑΣΦ Submit ? Request Answer m How many seconds elapsed on your watch when she saw 23.0 s pass on hers? ■ | ΑΣΦ Request Answer ? SB1
- 2. Twin sisters, Anna and Zelma, are twenty years old. Anna stays on the Earth while Zelma gets on a 20.0-meter-long spaceship that travels at constant speed 0.98c to a distant star. The star is 9.00 lightyears away as measured by Anna. Zelma immediately turns around and travels back to the Earth at the same speed of 0.98c. a) What length does Anna measure for the spaceship while it is moving? b) Upon Zelma's return, which twin is seen to be older now on Earth and what is the age difference?At what speed, in m/s, would a moving clock lose 1.1 ns in 1.0 day according to experimenters on the ground? Hint: Use the binomial approximation. Express your answer in meters per second using two significant figures.Consider a proton moving with speed = 0.8 c. (c is the speed of light.) What is the kinetic energy, in MeV? (in MeV) OA: 256.2 B: 320.3 C: 400.3 D: 500.4E: 625.5 OF: 781.9 OG: 977.4 OH: 1222 C
- An elementary particle of a mass m, moving to the right with v=0.800 c after leaving an accelerator, collides with and sticks to an identical particle initially at rest. What is the speed of the combined particles? CHOICES: a. 0.300 c b. 0.400 c c. 0.500 c d. 0.600 cQuestion 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 = kgA muon is created at an accelerator experiment. It moves with a spe0.95c. The muon mass is1.90×10−28 kg. What is its momentum? A.1.20×10−19 kg m/s B.1.73×10−19 kg m/s C.2.88×10−19 kg m/s D.3.59×10−19 kg m/s ( Please type answer note write by hend )