4-Metal Density Cubes Set with Hooks, 32mm (Brass, Lead, Aluminum, Steel) Electricity & Magnetism_Electricity & Circuits Demonstrates that horizontal velocity is

Demonstrates that horizontal velocity is independent of vertical motion by ejecting a ball vertically from a moving aluminum car

this 20mm-diameter steel helix carries longitudinal

Sixty-five-piece molecular model set with 32 atoms and 33 bonds for demonstrating bonding angles

Molded in one piece with sleeve-bearing wheels

4-Metal Density Cubes Set with Hooks, 32mm (Brass, Lead, Aluminum, Steel) Electricity & Magnetism_Electricity & Circuits Demonstrates that horizontal velocity isFour metal 32mm density cube set with hooks in brass, lead, aluminum, and steel in a snap top case, with masses between 50 and 400g for 5N spring scale suspension work.