February 2019 1 11 Report
Seorang pilot pesawat terbang bergerak mendekati bandara apabila pilot tsb mendengar bunyi sirine yg dipancarkan oleh menara pengawas dengan frekuensi 200hz dan cpt rambat diudara 340m/s .frekuensi sumber bunyi 1700hz. tentukan kelajuan pesawat!
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