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Hu, Ben Yu-Kuang – European Journal of Physics, 2009
Based on relativistic velocity addition and the conservation of momentum and energy, I present simple derivations of the expressions for the relativistic momentum and kinetic energy of a particle, and for the formula E = mc[superscript 2]. (Contains 5 footnotes and 2 figures.)
Descriptors: Kinetics, Physics, Motion, Science Instruction
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Aslamazov, Lev – Quantum, 1992
Discusses the hydrodynamic reasons why a riverbed meanders through a plain. Describes how water movement at a bend in a river causes erosion and changes in the riverbed. Provides a mathematical model to explain the periodic shape of meanders of a river in a plain. (MDH)
Descriptors: Enrichment Activities, Mathematical Formulas, Mathematical Models, Motion