Solved: According to Einsteins special theory of

Chapter 7, Problem 7.147

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According to Einsteins special theory of relativity, the mass of a moving particle, mmoving, is related to its mass at rest, mrest, by the following equation mmoving 5 mrest B1 2 a u c b 2 where u and c are the speeds of the particle and light, respectively. (a) In particle accelerators, protons, electrons, and other charged particles are often accelerated to speeds close to the speed of light. Calculate the wavelength (in nm) of a proton moving at 50.0 percent the speed of light. The mass of a proton is 1.673 3 10227 kg. (b) Calculate the mass of a 6.0 3 1022 kg tennis ball moving at 63 m/s. Comment on your results.

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