Roseann Feldmann & Sally M Walker 
Pulleys [PDF ebook] 

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How does a pulley work? What is it? Colorful diagrams and fun-to-do experiments help you explore the many ways this simple machine can help make work easier and faster.

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Format PDF ● Pages 48 ● ISBN 9780822500650 ● Publisher Lerner Publishing Group ● Published 2001 ● Downloadable 3 times ● Currency EUR ● ID 4754235 ● Copy protection Adobe DRM
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