US$ 49.50
and steel in a snap-top case
Used to dissipate heat during sustained high-current work
5-inch skeleton in various positions for kinesiology demonstrations
with masses between 50 and 400g for 5N spring-scale suspension work
6-Piece Drilled Ball Set for Pendulum Demonstrations Glass Bottles_Reagent Bottles and steel in a snap-topSix 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.