Exercises on mechanics and natural philosophy; or, An easy introduction to engineering |
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Common terms and phrases
20 miles 9 ft accumulated acting angle of resistance applied ball body bound breadth centre of gravity cloth coefficient of friction construct the parallelogram cord cubic feet cubic foot cwts descend diameter distance due to friction earth embankment engine English evaporation fall fathoms feet of water fibres force fulcrum Grammar Greek hence horizontal horse powers inches incline inclined plane labour last example Latin length lever limiting angle machine material mean effective pressure mean height miles per hour modulus motion moving neutral axis number of strokes perpendicular pickmen piston plane point of overturning pulley pump rafter rail raised Required the H. P. required to find resistance of friction revo shovellers space specific gravity speed steam supposing tension thickness thrust tons traction train units VALPY Valpy's velocity vertical line vis viva wall weight
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Page 58 - ... when the sum of the moments tending to turn the lever in one direction, is equal to the sum of the moments tending to turn the lever in the opposite direction, then the lever will be in equilibrium.
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Page 129 - Let AD be the direction of the resultant reaction S, so that the angle of friction is BAD. Let this angle be ASince R and pR are the components of S, we have and S sin X = tn.R.
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