ISSN:0002-9505    

DOI:10.1119/1.18684

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.18685

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.18668

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

This Resource Letter provides an introductory guide to the literature on nonlinear dynamics. Journal articles and books are cited for the following topics: general aspects of nonlinear dynamics and applications of nonlinear dynamics to various fields of physics, other sciences, and a few areas outside the sciences. Software and Internet resources are given also.

ISSN:0002-9505    

DOI:10.1119/1.18544

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

We review howantiparticlesmay be introduced in classical relativistic mechanics, and emphasize that many of their paradoxical properties can be more transparently understood in the classical than in the quantum domain.

ISSN:0002-9505    

DOI:10.1119/1.18669

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

The design and construction of a mechanical Duffing oscillator suitable for use in an undergraduate laboratory is described. The oscillator provides a straightforward introduction to nonlinear vibrations and chaotic behavior that is both pedagogically appealing and easily adapted to students at various levels of sophistication. Good agreement is observed between the motion of the oscillator and computer simulations, which provides students with an introduction to the power of mathematical modeling. Period-doubling routes to chaos can be observed both experimentally and numerically.

ISSN:0002-9505    

DOI:10.1119/1.18670

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

The concept of an equilibrium continuous charge density on a conducting line, although in some ways unphysical, does provide useful physical insight into needlelike conductors. It is shown that the charge density on such a line must be uniform. A simple method is developed for calculating the charge density on long, thin conductors with circular cross section. Also, the equilibrium distribution ofNequal charges on a line is shown to approach equal spacing (except near the ends) as the number of charges grows.

ISSN:0002-9505    

DOI:10.1119/1.18671

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

The braking force acting on a conducting disk rotating under the influence of an external magnetic field of axial symmetry is calculated in a quasi-static approximation and the role played by the charge distributions induced in the disk is shown. The two cases of infinite and finite radius are considered to analyze the influence of edge effects and we obtain a general expression for the braking torque when the magnetic field has axial symmetry. The particular case of a uniform external magnetic field is used to show the working of a simplified model of a cylindrical battery. Analytical results are compared with those obtained by other authors.

ISSN:0002-9505    

DOI:10.1119/1.18672

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

We investigate the interaction of two-level atoms possessing finite permanent electric dipole moments with electromagnetic radiation. After framing the problem in a historical perspective, we solve it in the interaction picture and examine the possibility of extracting information on atomic permanent dipole moments from fluorescence measurements.

ISSN:0002-9505    

DOI:10.1119/1.18673

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP

摘要:

The decomposition of electromagnetic fields for a system of elementary classical point charges into velocity fields and acceleration fields is suggested by the appropriate terms in the Lienard–Wiechert formulas. This paper introduces “bound” fields and “radiation” fields which are related butnot identicalto velocity and acceleration fields, respectively. It is shown how this approach can be used in the construction of an energy–momentum tensor that is free of infinite quantities and settles the4/3problem in the Lorentz transformation of momentum.

ISSN:0002-9505    

DOI:10.1119/1.18674

出版商:American Association of Physics Teachers    

年代:1997

数据来源: AIP