October 2018 2 23 Report
Seorang peneliti hewan hewan langka di lautan mengirimkan bunyi dari bagian bawah kapalnya. bunyi pantul diterima kembali setelah 2,2 sekon. data menunjukkan bahwa ditemukan hewan di kedalaman d. jika cepat rambat bunyi di air laut 1.440 m/s, berapakah nilai d?
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