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a=2,v=1.20574,x=0.137744 ,z=7.5,((a v) /0.3048*sqrt(5/7)*2/7*(1 (1 x)*sqrt(5/7))/(1 sqrt(5/7)) z*((a v)/1.83)^2*(1 x)*abs(1 x)*5/7)*0.3048
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