A Pulley (How Can I Experiment With Simple Machines)
ISBN-10:
1589525957
ISBN-13:
9781589525955
Author(s): Armentrout, David; Armentrout, Patricia
Edition: Illustrated
Description:
Examines Pulleys, Explains Their Functions, And Suggests Simple Experiments To Demonstrate How They Work.
We're an Amazon Associate. We earn from qualifying purchases at Amazon and all stores listed here.