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DeWeerd, Alan J. – Physics Teacher, 2007
In a recent article, Iain MacInnes analyzed the static equilibrium of a system consisting of a wine bottle and a wine butler. After discussing that composite system, students can be asked to consider only the bottle (and its contents) as the system. An interesting challenge for them is to describe the forces on the bottle in static equilibrium.
Descriptors: Science Instruction, Scientific Principles, Teaching Methods, Problem Solving