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The mobile phone as a free-rotation laboratory
Euler's rigid rotators, Jacobi elliptic functions, and the Dzhanibekov or tennis racket effect
Evaluating wind turbine power coefficient—An undergraduate experiment
Acoustic levitation and the acoustic radiation force
Tesla's fluidic diode and the electronic-hydraulic analogy
EDITORIAL
BACK OF THE ENVELOPE
How far can planes and birds fly?
Am. J. Phys. 89, 339–341 (2021)
https://doi.org/10.1119/10.0003729
PAPERS
The mobile phone as a free-rotation laboratory
Am. J. Phys. 89, 342–348 (2021)
https://doi.org/10.1119/10.0003380
Euler's rigid rotators, Jacobi elliptic functions, and the Dzhanibekov or tennis racket effect
Am. J. Phys. 89, 349–357 (2021)
https://doi.org/10.1119/10.0003372
Evaluating wind turbine power coefficient—An undergraduate experiment
Am. J. Phys. 89, 365–369 (2021)
https://doi.org/10.1119/10.0003730
Frequency-dependent capacitors using paper
Am. J. Phys. 89, 370–371 (2021)
https://doi.org/10.1119/10.0002655
Acoustic levitation and the acoustic radiation force
Am. J. Phys. 89, 383–392 (2021)
https://doi.org/10.1119/10.0002764
Tesla's fluidic diode and the electronic-hydraulic analogy
Am. J. Phys. 89, 393–402 (2021)
https://doi.org/10.1119/10.0003395
A guide for incorporating e-teaching of physics in a post-COVID world
Am. J. Phys. 89, 403–412 (2021)
https://doi.org/10.1119/10.0002437
The Persico equation for minimum uncertainty states
Am. J. Phys. 89, 413–417 (2021)
https://doi.org/10.1119/10.0002719
The bound-state solutions of the one-dimensional hydrogen atom
Am. J. Phys. 89, 418–425 (2021)
https://doi.org/10.1119/10.0002639
A first encounter with the Hartree-Fock self-consistent-field method
Am. J. Phys. 89, 426–436 (2021)
https://doi.org/10.1119/10.0002644
COMPUTATIONAL PHYSICS
BOOK REVIEWS
Gravitational Few-Body Dynamics: A Numerical Approach
Am. J. Phys. 89, 443–444 (2021)
https://doi.org/10.1119/10.0003728
