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Một hộp sữa có khối lượng 790g và thể tích 420cm³ tính khối lượng riêng của sữa trong hộp đó từ đó tính trong lượng riêng của hộp sữa


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Hoàng N

04 tháng 1 2020 03:06

Tóm tắt: m= 790g=0,790kg V= 420cm khối = 0,000420m khối D=? d=? Giải Khối lượng riêng của sữa trong hộp là D=m/V = 0,790/0,000420=1880(kg/m khối) Trọng lượng riêng của hộp sữa là d=10.D= 10.1880=18800(N/ m khối)

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1

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Lihat jawaban (4)