Exer. 79-80: During a nuclear explosion, a fireball will be produced having a maximum volume Vo. 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 V. 79 V/V, = 0.8197 + 0.007752t + 0.0000281 (20-kiloton explosion) 80 V/V, = 0.831 + 0.00598t + 0.0000919r2 (10-megaton explosion)

Exer. 79-80: During a nuclear explosion, a fireball will be produced having a maximum volume Vo. 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 V. 79 V/V, = 0.8197 + 0.007752t + 0.0000281 (20-kiloton explosion) 80 V/V, = 0.831 + 0.00598t + 0.0000919r2 (10-megaton explosion)