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9999books lists free science books, textbooks, lecture notes, monographs, and other science related documents. All texts are available for free reading online, or for downloading in various formats.

Fundamentals of Physics Extended-9ed-Halliday

Physics for Scientists and Engineers with Modern Physics- serway 8th ed

70 books - Schaum's series

Physics for Scientists and Engineers Serway-6ed

50-math books

Physics Books-Benjamin Crowell