Exer: During a nuclear explosion, a fireball will be produced having a maximum volume V0. For temperatures below 2000 K and a given explosive force, the volume V of the fireball t seconds after the explosion can be estimated using the given formula. (Note that the kelvin is abbreviated as K, not °K.) Approximate t when V is 95% of V0.
V/V0 = 0.8197 + 0.007752t + 0.0000281t2 (20-kiloton explosion)
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