What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.
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Språk Spanska ● Formatera PDF ● ISBN 9780822563112 ● Utgivare Lerner Publishing Group ● Publicerad 2005 ● Nedladdningsbara 3 gånger ● Valuta EUR ● ID 5845960 ● Kopieringsskydd Adobe DRM
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