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Revista mexicana de física E
versão impressa ISSN 1870-3542
Resumo
FERNANDEZ GUASTI, M.. Péndulo de longitud variable: experimentos. Rev. mex. fís. E [online]. 2007, vol.53, n.1, pp.120-126. ISSN 1870-3542.
The evolution of a pendulum with variable length is experimentally reported. The orthogonal functions invariant is shown to reproduce, under the appropriate conditions, the well known abrupt and adiabatic limits. Experimental results in these regimes are shown together with intermediate cases not previously reported. This article is dedicated to Don Juan de Oyarzábal in memorial of his extraordinary classical mechanics lectures at UAM-Iztapaplapa during 1975.
Palavras-chave : Harmonic oscillator; time-dependent parameter; exact invariance.