[Transcriber's Notes]

3.14 radians = PI radians = 180 degrees . 1 radian = 57.30 degrees . 5. Pressure . 760 millimeters of mercury = 14.7 pounds per square inch . 6. Power . 1 horse power = 550 foot pounds per second = 746 watts . 7. Miscellaneous. 60 miles per hour = 88 feet per second . 980 centimeters per second per second = 32.2 feet per second per second ... ................
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