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Inclined Planes to the Rescue

Sharon Thales

出版	Capstone, 2007
主題	Juvenile Nonfiction / Technology / Machinery & ToolsJuvenile Nonfiction / Science & Nature / Physics
ISBN	073686752X9780736867528
URL	http://books.google.com.hk/books?id=Sr52VeMbWpkC&hl=&source=gbs_api
EBook	SAMPLE

註釋

What do wheelchair ramps, slides, and roller coasters have in common? They're all inclined planes. Read Inclined Planes to the Rescue to learn what inclined planes are, how they work, and how these simple machines can save the day.