a) Let L be the diameter of our galaxy. Suppose that a person in a spaceship of mass m wants to travel across the galaxy at constant speed, taking proper time τ. Find the kinetic energy of the spaceship. (b) Your friend is impa- tient, and wants to make the voyage in an hour. For L = 105 light years, estimate the energy in units of megatons of TNT (1 megaton=4×109 J).
a) Let L be the diameter of our galaxy. Suppose that a person in a spaceship of mass m wants to travel across the galaxy at constant speed, taking proper time τ. Find the kinetic energy of the spaceship. (b) Your friend is impa- tient, and wants to make the voyage in an hour. For L = 105 light years, estimate the energy in units of megatons of TNT (1 megaton=4×109 J).
University Physics Volume 3
17th Edition
ISBN:9781938168185
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Chapter5: Relativity
Section: Chapter Questions
Problem 71P: (a) Beta decay is nuclear decay in which an electron is emitted. If the electron is given 0.750 MeV...
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(a) Let L be the diameter of our galaxy.
Suppose that a person in a spaceship of mass
m wants to travel across the galaxy at constant
speed, taking proper time τ. Find the kinetic
energy of the spaceship. (b) Your friend is impa-
tient, and wants to make the voyage in an hour.
For L = 105 light years, estimate the energy in
units of megatons of TNT (1 megaton=4×109 J).
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