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| Free Fall Tube and Activity Guide Item number FFT001. Regularly stocked item. Usually ships within 3 to 5 business days. United Scientific |
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Free Fall Tube demonstrates that all objects experience the same gravitational acceleration and fall at the same speed in a vacuum, but in air the air resistance slows down some objects more than others. Features a disc and a feather in a tough, clear, plastic tube, 90 CM long and 4.5 CM diameter, with rubber end caps and hose cock for connection to any standard vacuum pump (not included). Includes activity guide. |
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