A buoy is a solid cylinder 0.3m in diameter and 1.2m long. Itis made of a materi

Question

A buoy is a solid cylinder 0.3m in diameter and 1.2m long. Itis made of a material with a specific weight of 7.9 kN/m^3. If itfloads upright, how much of its length is above the water? A buoy is a solid cylinder 0.3m in diameter and 1.2m long. Itis made of a material with a specific weight of 7.9 kN/m^3. If itfloads upright, how much of its length is above the water? A buoy is a solid cylinder 0.3m in diameter and 1.2m long. Itis made of a material with a specific weight of 7.9 kN/m^3. If itfloads upright, how much of its length is above the water? A buoy is a solid cylinder 0.3m in diameter and 1.2m long. Itis made of a material with a specific weight of 7.9 kN/m^3. If itfloads upright, how much of its length is above the water?

Explanation / Answer

d = 0.3 m, L = 1.2 m, = 7.9 kN/m3, specificweight of water w = 9.8 kN/m3, find habove the water area of cross section = A length inside the water is L - h LA = w(L - h)A h = L(1 - /w) = 0.23 m

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