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**Unformatted text preview: **after t thousands of years. Let A = 15.3 cpm/g. a) Fill in the table below: Age of object (1000’s of years) 0 1 2 3 4 5 6 7 8 9 10 12 15 17 Amount of C14 (cpm/g) 15.3 13.56 12.01 10.64 9.43 8.35 7.4 6.56 5.81 5.15 4.56 3.58 2.49 1.95 b) Sketch a graph using graph paper. c) There are two samples of wood. One was taken from a fresh tree and the other from Stonehenge and is 4000 years old. How much Carbon 14 does each sample contain? (answer in cpms) Reading from the table: The fresh wood will contain 15.3 cpm’s of Carbon 14 while the wood from Stonehenge will contain 9.43 cpm’s of Carbon 14. i) x f( x ) 0 10.5 1 12.7 2 18.9 3 36.7 ii) x f( x ) 0 27 2 24 4 21 6 18 iii) x f( x ) -1 50.2 0 30.12 1 18.072 2 10.8432...

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