Hale, Joseph W. L. (Joseph Woodwell Ledwidge), 1886- · New York [etc.] McGraw-Hill book company · leaf 112
Fig. 100. … example, if the card shown has an area of 2.10 sq. in.and its length is 3.73 in., the average height = 2.103.73 .563 in. If the scale of the diagram is 80 lb. to theinch this represents an average pressure of .563 X 80 or45 lb. per sq. in. From this average pressure called the mean…
Mechanics, Applied
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