US$ 16.00
Heavy-base metal stand with a pillar
Spring-loaded two-prong jaws self-adjust to apparatus up to 2
charging battery with motor-generator #1
variable valve timing (VVT)
Brass 1-inch diameter pendulum bob weighing 2
Triple-Long Metal Pulley Item Type_Springs Heavy-base metal stand with aThree wheel stacked metal pulley for maximum mechanical advantage in compound pulley systems, sized for advanced simple machines experiments in physics instruction.
US$ 16.00
US$ 31.00
US$ 85000.00
US$ 35000.00
US$ 10.00
US$ 30000.00
US$ 16.00
US$ 176.00
US$ 35000.00