man teaching physics equation classroom chalkboard vector illustration educational concept |
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| navigate by keyword : academic adult blackboard casual chalkboard classroom communication concept dark education energy equation explaining formula grey indoors instructor intellectual knowledge learning lesson male man mass material mathematics pants person physics presentation professional school science setting sharing shirt speed squared standing student study subject teacher teaching theory tool vector writing |
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| Illustration shows a man writing the physics formula E mc squared on a chalkboard in a classroom setting, focused and engaged mood. Generative AI |
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