Lift lbf = (Normal force lbf) x (cosine of angle of attack)
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2.744 Newtons, or 0.62 lbf (pounds force)
"Psi" says the formula. The pound per square inch or, more accurately, pound-force per square inch - symbol: psi or lbf/in2 or lbf/in2 - is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch. 1 pound per square inch = 6 894.75729 pascals Pascal (Pa) is the SI unit of pressure.
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Volume = pi*r2*h = 95.03 cu ftAt a density of 5.81 pounds per cu ft the block would have a mass of 95.03*5.81 pounds.Using 32 ft/sec2 as gravitational acceleration, the weight is 93.05*5.81*32 pound-force =17,675 pound-force (lbf).
120 lb(m) is 54.4310844 kilograms and 120 lbf is 533.786594 newtons, assuming that by European you mean the metric system, which is the standard system of measurement for the entire world with the exception of the United States and a handful of other countries.