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    • Thread Starter

    Has anyone got any tips/pdf files they have that can aid me with certain concepts in unit 2:

    - Electricity calculations...what voltage/current/resistance to use when
    - Diffraction of waves
    - Snell's Law theory and calculations
    - Calculations and theory of standing waves (yes, all of it)

    PLEASE, any help would be incredibly wanted otherwise i'm basically gonna die this summer :mad:
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