to undergo one cycle? 5-4. From Problem 5-3, we see that the period of a harmonic vibration is t = 1/v. The average of the kinetic energy over one cycle is given by 1 ==S T (K) = Interpret the result (K) = (V). mw²C² 2 Show that (K) = E/2 where E is the total energy. Show also that (V) = E/2, where the instantaneous potential energy is given by V = kC² cos² (wt + p)dt 2 - sin² (wt + p)

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter20: Molecular Spectroscopy And Photochemistry
Section: Chapter Questions
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only 5.4 problem, please

80
Chapter 5 / The Harmonic
5-3. The general solution for the classical harmonic oscillator is x (t) = C sin(wt + p). Show
or
that the displacement oscillates between +C and -C with a frequency w radian-s-1
v = w/2π cycle-s¯¹. What is the period of the oscillations; that is, how long does it take
to undergo one cycle?
5-4. From Problem 5-3, we see that the period of a harmonic vibration is t = 1/v. The average
of the kinetic energy over one cycle is given by
(K) =
1
Interpret the result (K) = (V).
-
mw²C²
2
cos² (wt + p)dt
Show that (K) = E/2 where E is the total energy. Show also that (V) = E/2, where the
instantaneous potential energy is given by
kC²
V = sin² (wt + p)
2
Transcribed Image Text:80 Chapter 5 / The Harmonic 5-3. The general solution for the classical harmonic oscillator is x (t) = C sin(wt + p). Show or that the displacement oscillates between +C and -C with a frequency w radian-s-1 v = w/2π cycle-s¯¹. What is the period of the oscillations; that is, how long does it take to undergo one cycle? 5-4. From Problem 5-3, we see that the period of a harmonic vibration is t = 1/v. The average of the kinetic energy over one cycle is given by (K) = 1 Interpret the result (K) = (V). - mw²C² 2 cos² (wt + p)dt Show that (K) = E/2 where E is the total energy. Show also that (V) = E/2, where the instantaneous potential energy is given by kC² V = sin² (wt + p) 2
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