Uniform Circular Motion
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. A novel discussion on centripetal force
Abstract In order to enrich the field of Newtonian mechanics, some novel approaches for the derivation of the expression for the centripetal force have been offered in this paper. The paper starts with a lucid and easily readable discussion of how the centripetal force arises when a particle undergoes uniform circular motion and it ends with a systematic pre
Rev. Bras. Ensino Fís.. Publicado em: 06/08/2018
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2. DYNAMIC ANALYSIS OF HYPERLASTIC CIRCULAR MEMBRANES / ANÁLISE DINÂMICA DE MEMBRANAS CIRCULARES HIPERELÁSTICAS
This work presents an analysis of the nonlinear vibration response of a prestretched hyperelastic circular membrane subjected to finite deformations. The membrane material is assumed to be isotropic, homogeneous and neo-Hookean. Based on the theory of finite deformations for hyperelastic membranes, a variational formulation is developed. First the exact solu
Publicado em: 2009
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3. O movimento circular uniforme para alunos da EJA que trabalham no processo de produção do couro
A proposta aqui apresentada foi aplicada a uma turma de 40 alunos do Ensino Médio da modalidade Educação de Jovens e Adultos em uma escola privada situada na cidade de Estância Velha, RS. Os alunos desta modalidade caracterizam-se por serem alunos trabalhadores do setor coureiro e calçadista na cidade. O foco do trabalho é o ensino de Física na EJA, m
Publicado em: 2009
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4. Scalar source in circular motion interacting with massive klein-gordon field in Minkowski spacetime
We analyze the scalar radiation emitted by a source in uniform circular motion in Minkowski spacetime interacting with a massive Klein-Gordon field. We assume the source rotating around a central object due to a Newtonian force. By considering the canonical quantization of this field, we use perturbation theory to compute the radiation emitted at the tree le
Brazilian Journal of Physics. Publicado em: 2005-12
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5. Electron trajectories in a helical free-electron laser
A description is made of electron trajectories in a magnetic field consisting of helical wiggler and a uniform axial guide field. The explicit motion of particles for which the quadratic approximation to the Hamiltonian was carried out in some previous publications is now presented. The transverse position as a function of time is essentially the superpositi
Brazilian Journal of Physics. Publicado em: 2002-09
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6. Normal modes propagation in a helical free-electron laser with an axial guide field
Following up the detailed three-dimensional analysis of the particle dynamics in a free electron laser with a helical wiggler and a uniform axial guide magnetic field, achieved by Rhimi et al. [1], we study the motion of the electrons in the neighborhood of the ideal trajectory. The normal modes ± of the quadrat
Braz. J. Phys.. Publicado em: 2001-09
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7. Spatial attention affects brain activity in human primary visual cortex
Functional MRI was used to test whether instructing subjects to attend to one or another location in a visual scene would affect neural activity in human primary visual cortex. Stimuli were moving gratings restricted to a pair of peripheral, circular apertures, positioned to the right and to the left of a central fixation point. Subjects were trained to perf
The National Academy of Sciences.