90Sr is one of the most deadly products of nuclear fi ssion.Assume that 4% of the fi
Chapter 13, Problem 60(choose chapter or problem)
90Sr is one of the most deadly products of nuclear fi ssion.Assume that 4% of the fi ssion fragment yieldfrom a 235U atomic bomb is 90Sr. In a nuclear interchangeon the planet Inhospitable, 1000 atomicbombs, each corresponding to the fi ssion of 100 kg of235U, are detonated. (a) How many atoms of 90Sr arereleased? (b) Assuming the 90Sr is spread evenly overthe planet of diameter 12,000 km, what is the resultingactivity for each m2? The half-life of 90Sr is 28.8 y.
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