Question

Wonder Woman’s Golden Lasso is wielded by Princess Diana of Themyscira. While useful as a weapon, it also compels anyone it captures to tell the truth. Once wrapped around a person, the lasso very accurately monitors breathing, heart rate, and blood pressure. It does this by using both visible and higher energy X-ray light, which can penetrate human skin and monitor the dilation of capillary blood vessels. The element responsible for the lasso’s radiation has a half-life of 1.15E5 years. The lasso was formed from Aphrodite’s girdle and contained 110 mols of radioactive atoms (6.62E25 atoms) when it was created. Currently, the lasso contains 5.74E25 radioactive atoms. How old is the lasso?

Answer 1

t? 1.15 x 0 years. Na 5.74x1625, No 2 6.62 x 1025 d = 0.693 0.693 TA 1.15x 105 lasse is old bérme' e' 6. 603x10-5 year 1. leb, lay Na No ende & e-de oh e-de 2 eda 6.62 0.867 on, s. 74 x 187 – 6.62x107, 5.74 0.867. .667 1.1534 * In (1.1534) 0% 0.1427 0.1427 = 23665 years = 23 660 years (option 3 OM de ede db = 0.603x10-5