Area, 1 in 2, 0.64516 × 10 −3 m 2 ... Density, 1 slug/ft 3 = 1 lbf s 2 /ft 4, 515.38 kg/m 3. 1 lbf s 2 /in 4 ... Pressure, Stress, 1 psi (lbf/in 2 ), 6894.8 Pa (N/m 2 ) ...
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