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How "Electromagnetic Waves" Transmits Information—Introduction to Communication Technology PPT Courseware 2
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How "Electromagnetic Waves" Transmits Information—Introduction to Communication Technology PPT Courseware 3
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"Exploration - What does the magnitude of frictional force have to do with" Motion and Force PPT Courseware 4
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"How Sound is Produced" Various Sounds PPT Courseware 3
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"How Plants Reproduce" Plant Life System PPT Courseware 2
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"How to compare the speed of work" PPT courseware on mechanical work and mechanical energy
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"How Lever Works" Construction and Simple Machinery PPT Courseware 2
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"What's the temperature today" What's the weather like tomorrow PPT courseware 2
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