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Show that if r(t) has a constant speed, then r′(t) is perpendicular to r′′(t).

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter7: Quantum Mechanics

Section: Chapter Questions

Problem 40P: Show that (x,t)=Aei(kwt) is a valid solution to Schrödinger's time-dependent equation.

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Show that if r(t) has a constant speed, then r′(t) is
perpendicular to r′′(t).

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