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Emre65
Answers (1)
E=E1*V1+E2*V2+E3*V3 V1=Boron volume fraction,V2= Tungsten Volume fr. V3=AL vol. fr. V1=pi*d^2/4 *h=pi*75^2/4*h V2=pi*10^2/4*h V1/V2=56.25 V1+V2= 0.35 so V1=0.343, V2=0.007 and V3=1-0.35=0.65, E1=EB , E2=EW, E3=EAL E=379*0.343 + 410*0.007 + 69*0.65 = 177.71