Description
open at one end for mercury barometer construction and atmospheric pressure demonstrations
driving performance with motor-generator #2
Four-step large-ball-bearing differential pulley with 20
Air-cooled rheostat with extended-tube ventilation
Hall's Friction Cars, 2-Pack Subject_Chemistry open at one end forSold as a matched pair for collision and comparison work, these low friction Hall's cars support kinematics, energy, and friction experiments on inclined planes and tracks.
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