Question: 1. fEardrum area = 70 mm Sound level = 60-dB Find energy . received by the eardrum in one second.bat = 7.0 m 's ,

\fEardrum area = 70 mm Sound level = 60-dB Find energy . received by the eardrum in one second.bat = 7.0 m 's , f = 35 KHz what is frequency of reflected wave?\fFind magnitude & direction 4 am a 2 0m of the electric field at point" a"? - 10 MC + 5 UC

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