US$ 44.82
5-inch base with two labeled magnets and 4mm sockets
showing how different wheel diameters change mechanical advantage
this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work
6 lb iron tension weight
Hand-cranked cam turning against both a straight follower and a lever follower
Simple Handheld Centripetal Force Kit Item Type_Net 5-inch base with two labeledHand spun centripetal force apparatus with a hollow grip, string, washers, paper clips, and a rubber stopper, demonstrating how mass and radius drive centripetal acceleration in circular motion.
US$ 44.82
US$ 3900.00
US$ 53.82
US$ 44.82
US$ 107.27
US$ 31.84
US$ 179.00
US$ 3800.00