US$ 17.95
Cast-metal base mounts a heavy-duty electromagnet-driven fork at ~80Hz
700-microfarad electrolytic capacitor module with 4mm sockets
and steel in a snap-top case
housed in a 5
6-Piece Drilled Ball Set for Pendulum Demonstrations Glass Bottles_Reagent Bottles Cast-metal base mounts a heavy-dutySix material drilled ball set with 25mm balls of wood, aluminum, steel, copper, brass, and lead threading onto string or rod for mass dependent pendulum period comparisons.
US$ 17.95
US$ 17.95
US$ 17.95
US$ 17.95
US$ 12.98