Engineering, 05.10.2019 13:30 adriana145
Athletic equipment companies have produced aquatic dumbbells that are less dense than water such that they provide an upward force when submerged. your goal is to design a dumbbell that provides a force that is equal in magnitude whether it is submerged or in the air by combining polyurethane foam (300 kg/m^3) and a steel bar of radius 2 cm (8000 kg/m^3). propose a design and report the fraction of the total mass of each dumbbell that is polyurethane.
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