Distancia a escala a la pared posterior

Scaled distance calculation for the blast explosion on the front facing wall

Z = \frac{R}{\sqrt[3]{W}} = \frac{120 ft}{\sqrt[3]{500 lb}} = 15.1 \frac{ft}{{lb}^{1 / 3}}

R	Distance from the element to charge
W	TNT equivalent charge weight

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