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A sample of U (7 1.59 x 10 yr) contains - 6.30 x 10 nuclei. Part A What is the decay constant? Express your

A sample of U (7 1.59 x 10 yr) contains - 6.30 x 10 nuclei. Part A What is the decay constant? Express your answer using three significant figures. A = 1.38x10-13 1 Part B Correct AN AI Previous Answers Approximately how many disintegrations will occur per minute? Express your answer using three significant figures. VOAEO Submit 869 Previous Answers Blequest Anawer X Incorrect; Try Again; 15 attempts remaining ? decays/min

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