A moving hydrogen atom (rest mass = 939 MeV/c², where c is the speed of light in vacuum) has a kinetic energy of 313 MeV. (a) What is the total energy of this atom in MeV? (b) What is this particle's speed in terms of c? (c) What is the magnitude of this atom's linear momentum?

A moving hydrogen atom (rest mass = 939 MeV/c², where c is the speed of light in vacuum) has a kinetic energy of 313 MeV. (a) What is the total energy of this atom in MeV? (b) What is this particle's speed in terms of c? (c) What is the magnitude of this atom's linear momentum?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter39: Relativity

Section: Chapter Questions

Problem 57PQ: Consider an electron moving with speed 0.980c. a. What is the rest mass energy of this electron? b....

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

Question

A moving hydrogen atom (rest mass = 939 MeV/c2, where c is the speed of light in vacuum) has
a kinetic energy of 313 MeV.
(a) What is the total energy of this atom in MeV?
(b) What is this particle's speed in terms of c?
(c) What is the magnitude of this atom's linear momentum?

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