45. Since the spreading is assumed uniform, the count rateR=74,000/sisgivenbyR=λN=λ(M/m)(a/A),whereM= 400 g,mis the mass of the90Sr nucleus,A= 2000 km2,andais the area in question. Wesolve fora:a=A³mM´µRλ¶=
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.