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09:10 Stage 1 (1) Stage 1 (1)	Stage 1 (1) bom word seconds question questions experiment table paper words powerpoint presentation pair accuracy practice letters slide caps asks fight instance From Joshua Rice 0 likes 5 plays 0
19:54 2.1 Pre-Class Lecture 2.1 Pre-Class Lecture	2.1 Pre-Class Lecture times energy frequency wavelength photon photons nanometers meters joules lambda light wave 18th 21st 15th seconds sense question point 34th From Leena Nabulsi 0 likes 38 plays 0