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amplitude.cmap amplitude.jpg electromagnetic.jpg frequency of a wave or an oscilllation.cmap longitudinal_waves.jpg one_oscillation.mp4 sound_bell_jar.swf sound_loudness.swf sound_pitch.swf sound_refl_n_refr_01.swf sound_waves.jpg sound_waves.swf transverse_waves.jpg wave_length.jpg wave_length.cmap wave4.url wave4.swf wave4_diamiki.swf waves1.cmap Ατέρμονος Μάθηση κόμβος.url βίντεο.url είδη κυμάτων.cmap λογότυπο2c.png