October 2019 1 19 Report
Seseorang berteriak saat berdiri diantara 2 tebing batu. Gema tebing 1 terdengar 0,6 sekon sesudah suara teriakan dan 0,8 sekon sesudah gema pertama datang gema dari tebing 2. Jika cepat rambat bunyi 340 m/s maka jarak tebing 1 dan 2 adalah....
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