DETERMINATION OF COEFFICIENT OF DISCHARGE IN A VENTURI METER

DETERMINATION OF COEFFICIENT OF DISCHARGE IN A VENTURI METER know on that table on lab manual on first experiment I got H 0.07 , and should do this value on that law in lab manual, How he multiply in values and the work of a new law? it should be do on law and complete work, or not ? would some one please fix this problems as soon as possible and solve calculation by use my value with same law in pdf file or if there are anythings, lest let me know