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Physics, 23.10.2021 14:00 willveloz4

từ đỉnh tháp nghiêng pida người ta thả rơi một quả đạn pháo rơi tự do thì 4s sau nghe thấy tiếng nổ. Biết khi chạm đất quả đạn pháo mới nổ và vận tốc truyền âm thanh trong không khí là 330 m/s. Lấy g=10m/s2. Tìm độ cao của tháp

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từ đỉnh tháp nghiêng pida người ta thả rơi một quả đạn pháo rơi tự do thì 4s sau nghe thấy tiếng nổ....

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