Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 80
me with C, the centre of gravity of the sec-tion of the reservoir. But nothing is required to balancethe upper layer. Hence the section of the side of thereservoir must be a triangle. Since the weight of the tri-angle alone resists the pressure, it will all be concentratedat its centre of gravity… … EQUILIBRIUM. 71
Physics
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