刘兴旺 发表于 2025-3-21 20:07:20
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Analyse der Dynamik von Marktbedeutungen,A lever is a device which increases the effectiveness of a force (or effort) in doing work, for example, raising a load with the assistance of a crowbar.CLASP 发表于 2025-3-22 12:18:52
Natalie Schilling,Florian VietzeMechanical work is done when a force causes movement.ligature 发表于 2025-3-22 16:23:31
Polishing your plots for publication,If a person walks 7 km in an hour and 5 km in the next hour the . of the person is the average rate at which the distance is covered.ligature 发表于 2025-3-22 18:04:51
https://doi.org/10.1007/978-3-319-24277-4A graph is a diagrammatic way of conveying information.Obstacle 发表于 2025-3-22 22:22:10
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Introduction: Wells and Biology,A magnet is a material capable of attracting or repelling certain other materials. A permanent magnet retains its magnetic strength for an indefinite period of time and is usually a metal alloy.无所不知 发表于 2025-3-23 06:08:14
https://doi.org/10.1007/978-1-349-08655-9A simple a.c. generator comprises a coil which can be rotated between the poles of a magnet. Using the equipment provided rotate the coil and note the effect on the instrument.