# 2_89 - 2.8 The concrete{speciﬁc weight = 150 ibi‘fP...

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Unformatted text preview: 2.8? The concrete {speciﬁc weight = 150 ibi‘fP} seawal] of Fig. P131 has a unwed surface and restraints seawater at a depth at 24 ft. The trace of the surface is a parabola as illustrated. Determine the mo ment of the ﬂuid force (per unit length) with respect to an axis through the toe {point A). FIGURE P2.3."1’ The Campmmis at: 771: Hark! {Er-re def-airy an 7.59: mi! 91-: 45' and W a: sham» an 1‘71: Hiya)“: Mae-re =3¢,2‘,4:,1—;-:(éep ,)('“”f“ Ker-Hurt) = fﬁ‘i‘oeﬂ and 3f Ji—ft- _o°+°zf 41kg} raw.- Ha Y3 dea‘t’rmme ‘V «(and drew 35:9. Tires) {Ir-e «431:: in xfgm‘) g6 .4=/r.2e.._¢, )a‘x =/CE¥—e.gx2) at: e) 3 a! Jan: .1215 K [J‘I‘X __ 0.4?" L " ((9511::AH in???” u} If} and mist xﬁ If; A = I?! H»: 5:. 7}“!- J +’-= AxM‘e =- 37915153 Th r 1" (We-ﬂier: ﬁ,)ﬂr§ﬁ’)= mam h ﬂier-wife Cerf/r4121" of if : ﬂ =- '9- 25/5]: [:2 a’A = ﬂ(;:;- y)xa’x 4/(Jt‘at‘eoﬂxi4’cfx = ’ﬂe'ﬂg‘ ﬂ ﬁrm” ”I f rzojz- Q2 {lzajvl XI: 3 = tan it 1'75 Thur; _ MA. .- L: 9, ~ w/rr—xc) = ﬁgm eJKHtJ —ﬁ¢zaaemaacevewe) = Jé‘Zae 42.5) ...
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