Wood, De Volson, 1832-1897 · New York, J. Wiley & Sons · leaf 85
Fig. 12. Fig. 11. ds sin 8 = dp, which combined with the preceding equation gives dt 2 j ! dp J = G02pdp : -a dp. m sin 0 x . . (86) But -J?—n = ds, and if 6 be the weight of unity of volume, srn# then m = -ds, and the last term becomes | dp. The integral if will be df} = a _ «.* = at (r* — «*.\ —…
Turbines
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