The lowest possible mass of a particle is its _____________ a) Relativistic mass b) Inertial mass c) Gravitational mass d) Rest mass
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The lowest possible mass of a particle is its _____________
a) Relativistic mass
b) Inertial mass
c) Gravitational mass
d) Rest mass
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- 04) A moving electron collides with a stationary electron and an electron-positron pair comes into being as a result (a positron is a positively charged electron). When all four particles have the same velocity after the collision, the kinetic energy required for this process is a minimum Use a relativistic calculation to show that KE, 6me, where m is the rest mass of the electron. %3Dkg-m/s. A particle has a rest mass of 6.35 × 10-27 kg and a momentum of 4.71 x 10-18 Determine the total relativistic energy E of the particle. J E = the ratio of the particle's relativistic kin energy K to rest energy Erest. Fir K ErestA new material has a mass of 96 g when made into a cube with side length 5 cm. What is the density of the material in g/cm3? A) 480 B) 0.768 C) 3.84 D) 19.2
- Q2) Suppose two measured quantities x = (2.0 ± 0.2) cm, y = (6.0 ± 0.6) cm. Find z= x - y and its uncertainty (z+ Az) A) -4.0 ± 0.40 B) -4.0 + 0.89 C) -4.0 ± 0.63 D) -4.0 ± 0.8744 t nctu Data Analysis d- 90 cm Table 1.1: Sunmary of Average and Instantaneous Velocity TRIAL EXPERIMENT THEORY % Diff T (sec) T (sec) D (cm) vo (cm/s) a (cm/s) t7 (sec) 1 3.675 3.341 2.812 2.792 3.106 2.812 9.733 -2.776 -4.013 -5.639 14.86% 18.97%. 17.82% 17.72 7. 15.12 70 29.39 7 131.5 4.265 17.021 30.379 36.248 27.209 -5.942 2. 7.571 6.928 6.262 6.678 (6.732 115 16.5 116.5 114 115 4.011 3.342 3.275 3.614 3.595 3. の4.209 34.142 -5.113 b4.165 -5.045 Table 1.1 Questions 1. Is there a systematic dillerence between the cxperimental and calculated valucs of t1? If so, suggest possible factors that would account for this difference. 2. Can you think of a simple follow-up experiment that would allow you to determinc how much the cart's "deceleration" was affected by floor slope? Observations/Conclusion:2. The work-energy theorem relates the change in kinetic energy of a particle to the work done on it by an external force: AK = W = J F dx. Writing Newton's second law as F = dp/dt, show that W = Jv dp and integrate by parts using the relativistic momentum to obtain mc2 mc K = VI - v/c² |
- Which of the following statements describes the Michelson- Morley experiment? a. The speed of light is independent of the motion of the source relative to the observer. b. The speed of light is different in different frames of reference. c. The speed of light changes with changes in the observer. d. The speed of light is dependent on the motion of the source.observer is sitting on a car moving with some constant velocity. The observer sees things around him, in the ____ a) Relative frame of reference b) Absolute frame of reference c) Valid frame of reference d) Ground frame of reference2.5 Proton beam is used to obtain information about the size and shape of atomic nuclei. If the diameter of nuclei is of the order of 10-15 m, what is the approximate kinetic energy to which protons are to be accelerated? Use relativistic expressions.