Question

Question 18 5 pts In the movie, The Avengers, Loki's scepter contained one of the six infinity stones - the Mind Stone. Although the Mind Stone appears blue while in the scepter, it actually emits light in the yellow part of the visible spectrum, as well as low-energy gamma rays. It was these gamma rays that allowed Dr. Banner to track Loki back to New York City, where the movie's epic final battle took place. Presumably, the Mind Stone was formed at the beginning of the Universe during the Big Bang, but the elemental source of its gamma rays is unknown. The element does, however, have a very long half-life (7.92 billion years, or 7.92E9 years). If the Mind Stone originally contained 6.52E24 atoms of the unknown element when it formed during the Big Bang, how many atoms does it contain now, 13.8 billion years later (13.8E9 years)? O 1.43E24 atoms 9.96E23 atoms 2.14E24 atoms 3.65E24 atoms O 1.95E24 atoms

Answer 1

-ht N = No e As ln (2) ty = ln (2) 7.92 billion yr Nft = 13-8 billion yr.) 24 6:52x lo exp{- kutuk 137 In(2x 13.8 7.92 = 1-95 Eau atoms Option 5th CS Scanned with CamScanner