2. (i) An electron with rest energy 0.511 MeV travels with speed u = 0.7c. Find (a) its total energy (b) its kinetic energy, and (c) the magnitude of its momentum. (ii) Two Rockets, ecach 10000 cm long when they are measured at rest, move toward each other with speeds of 0.9c with respect to the earth (where c is the speed of light). (a) How long is each Rocket as measured by the observer on the earth? (b) Using velocity addition formula how fast is traveling each rocket as calculated by an observer on one of the rockets? (c) How long is one rocket when measured by an observer on one of the rockets?

2. (i) An electron with rest energy 0.511 MeV travels with speed u = 0.7c. Find (a) its total energy (b) its kinetic energy, and (c) the magnitude of its momentum. (ii) Two Rockets, ecach 10000 cm long when they are measured at rest, move toward each other with speeds of 0.9c with respect to the earth (where c is the speed of light). (a) How long is each Rocket as measured by the observer on the earth? (b) Using velocity addition formula how fast is traveling each rocket as calculated by an observer on one of the rockets? (c) How long is one rocket when measured by an observer on one of the rockets?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter9: Relativity

Section: Chapter Questions

Problem 19P: An enemy spacecraft moves away from the Earth at a speed of v = 0.800c (Fig. P9.19). A galactic...

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