electron using both the relativistic and nonrelativistic (classical physics) expressions; compute the ratio of the two results (relativistic divided by non-relativistic) when its speed is (b.1) 6.0 x 107 m/s; and (b.2) its momentum is 3.3 x 10-22 kg - m/s

electron using both the relativistic and nonrelativistic (classical physics) expressions; compute the ratio of the two results (relativistic divided by non-relativistic) when its speed is (b.1) 6.0 x 107 m/s; and (b.2) its momentum is 3.3 x 10-22 kg - m/s

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 25PQ

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Concept explainers

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.

Question

Please identify the knowns, unknown(s), appropriate formula(s) then computation. 2. a) Compute the kinetic energy of an electron using both the relativistic and nonrelativistic (classical physics) expressions; compute the ratio of the two results (relativistic divided by non-relativistic) when its speed is (b.1) 6.0 x 107 m/s; and (b.2) its momentum is 3.3 x 10-22 kg - m/s. [The mass of an electron is 9.11 x 10-11 kg]

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