2.58 static pressure. Constant pressure that would exist at a point in the absence of a sound wave. Unit, pascal (Pa); symbol, ps. Annotation One pascal is equal to one newton per...
2.56 stiffness. Ratio of change of force to the corresponding change in translational displacement of an elastic element. Unit, newton per meter (N/m). Annotation 1 In the case of torsional stiffness,...
2.55 standard acceleration due to Earth’s gravity. The value adopted in the International Bureau of Weights and Measures and confirmed in 1913 by the 5th General Conference on Weights and Measures as the standard for acceleration due to gravity. Unit,...
2.54 jerk. Vector that specifies the time rate of change of acceleration; jerk is the third derivative of translational displacement with respect to time. Unit, meter per second-cubed...
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