75. Since the spreading is assumed uniform, the count rate R= 74,000/s is given by R = λN= λ(M/m)(a/A), where M= 400 g, mis the mass of the 90Sr nucleus, A= 2000 km2, and ais the area in question. We solve for a: aAmMRAmRT
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This note was uploaded on 05/19/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.