March 2019 1 20 Report
Dino berteriak di antara dinding A dan B. Dino mendengar bunyi pantul pertama setelah 2 detik dan bunyi pantul kedua setelah 2,5 detik. Jika cepat rambat bunyi di udara 320 m/s, antara dinding A dan B berjarak? A.(180m) B.(360m) C.(720m) D.(1440m)

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