in x lb/ft Area (in²) W12x336 W12x305 W12x279 W12x252 98.8 89.6 81.9 74.1 W12x230 W12x210 W12x190 55.8 W12x170 W12x152 44.7 67.7 61.8 50 d (in) 16.82 16.32 15.85 15.41 15.05 14.71 14.38 14.03 13.71 y tw → bf (in) 13.385 13.235 13.14 13.005 12.895 12.79 12.67 12.57 12.48 I I beam Section Modulus Vy I beam Section Modulus Vx H beam Section Modulus Vx ← H beam Section Modulus Vy -bf - tf (in) 2.955 2.705 2.47 2.25 2.07 1.9 1.735 1.56 1.4 tw (in) 1.775 1.625 1.53 1.395 1.285 1.18 1.06 0.96 0.87 Ixx (in4) lyy (in4) 4060 1190 3550 1050 3110 937 2720 2420 2140 1890 1650 1430 828 The beams utilized in this fabrication project are W 12 x 152 What is the expression for the section modulus that should be used in determining maximum normal stress due to bending? Match the term to the description: [Choose ] 742 [Choose ] 664 589 517 454 ✓ [Choose ] lyy/(bf/2) where y is horizontal lyy/(bf/2) Ixx/(d/2) where x is vertical Ixx/(d/2)

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Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.