In a piece of rock from the Moon, the 87Rb content is assayed to be 1.82 x 1010 atoms per gram of material and the 87 Sr content is found to be 1.07 x 10° atoms per gram. (The relevant decay is 87 Rb → 87 Sr + e. The half-life of the decay is 4.8 x 1010 yr.) (a) Determine the age of the rock. (b) Could the material in the rock actually be much older? (c) What assumption is implicit in using the radioactive- dating method?

In a piece of rock from the Moon, the 87Rb content is assayed to be 1.82 x 1010 atoms per gram of material and the 87 Sr content is found to be 1.07 x 10° atoms per gram. (The relevant decay is 87 Rb → 87 Sr + e. The half-life of the decay is 4.8 x 1010 yr.) (a) Determine the age of the rock. (b) Could the material in the rock actually be much older? (c) What assumption is implicit in using the radioactive- dating method?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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