initial commit / add all books

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+clc;

+//Example 28.9

+//page no 437

+printf("Example 28.9 page no 437\n\n");

+//a large deep cavern has been proposed as an ultimate disposal site for both solid hazardous and municipal wastes

+V_c=0.78//approximate total volume of cavern,mi^2

+V_s=.75//% volume availiable for solid waste depositry 

+V=V_c*V_s*(5280)^3//volume of the cavern availible for the solid waste ,factor 5280 to convert mi^3 into ft^3

+printf("\n volume of cavern availible for solid waste V=%f ft^3",V)

+r=20000//proposed maximum waste feed rate to cavern ,lb/day

+rho=30//average bulk density,lb/ft^3

+q=(r/rho)*(6*52)//volume rate of solid deposited within the cavern in ft^3/year

+printf("\n q=%f ",q);

+t=V/q//time to fill the cavern

+printf("\n time to fill the cavern t=%f year",t);

+